watasitati no tiimu ha saigo made akiramezu ni ganbatte, yatto siai ni katta.

私たちのチーム means our team.

• 私たち = we / us
• の = shows possession or connection
• チーム = team

So 私たちのチーム literally means the team of us, or more naturally, our team.

If the sentence only said 私たちは, it would mean we as the topic. But here, the topic is specifically our team, not just the people speaking.

は marks the topic of the sentence.

So 私たちのチームは means as for our team...

It sets up what the sentence is going to talk about. In English, we often do not mark topic so clearly, but Japanese does.

Here, the sentence is basically saying:

As for our team, we didn’t give up until the end, kept trying hard, and finally won the match.

最後まで means until the end.

• 最後 = the end / the last stage
• まで = until / up to

So this phrase shows the limit or endpoint of the action. The idea is that the team kept going all the way to the end, without quitting partway through.

In this sentence, 最後まで most naturally connects with あきらめずに頑張って, meaning they kept trying hard until the very end.

Both あきらめずに and あきらめないで can mean without giving up, and both are possible in many situations.

Here, あきらめずに uses the grammar pattern:

• verb negative stem + ずに

So:

• あきらめる → あきらめずに

This means without giving up.

Compared with あきらめないで, あきらめずに can sound a little more formal, written, or polished. In a sentence like this, it sounds very natural.

So:

• あきらめずに頑張って = working hard without giving up
• あきらめないで頑張って would also be understandable, but the tone is a bit different

This part connects two actions or states:

• あきらめずに = without giving up
• 頑張って = trying hard / doing one’s best, and...

Together, it means something like:

not giving up and trying hard or trying hard without giving up

The ずに part shows that one thing did not happen, while the main action did happen.

So the team did not give up, and instead kept trying hard.

The て-form is being used to connect this part of the sentence to what comes next.

• 頑張って = trying hard, and...
• 勝った = won

So the sentence flows like this:

Our team, without giving up until the end, tried hard, and finally won the match.

In Japanese, it is very common to put earlier actions or circumstances in て-form, and then end the sentence with the final main verb in its tense form.

Only the last verb, 勝った, shows the final past tense for the whole sequence.

It is more like part of the lead-up to the result.

In English, we might say:

• Our team kept fighting hard and finally won
• Our team worked hard and finally won
• Our team hung in there and finally won

So 頑張って does describe an action, but in this sentence it also helps explain how the team ended up winning. It gives the sense of effort and perseverance before the final result.

やっと means finally, at last, or after a struggle.

It often implies that something took a long time, was difficult, or happened only after much effort.

So やっと試合に勝った does not just mean won the match. It means something closer to:

• finally managed to win the match
• at last won the match
• won the match after all that effort

That fits well with the earlier part about not giving up and trying hard.

Because the verb 勝つ normally takes に for the thing or person you win against, or the contest you win.

So:

• 試合に勝つ = to win the match
• 相手に勝つ = to beat the opponent

This is one of those cases where Japanese uses a particle differently from English. In English, win often takes a direct object, but in Japanese 勝つ is commonly used with に.

So 試合に勝った is the natural phrasing here.

Not really in a useful English sense. It is better to think of に here as the particle that naturally goes with 勝つ, rather than trying to force a word-for-word translation.

Japanese particles do not always match English prepositions neatly.

The important point is:

• 勝つ often goes with に
• 試合に勝つ is the standard way to say win the match
• 相手に勝つ is the standard way to say beat the opponent

So it is best learned as a pattern.

This is a very common feature of Japanese sentence structure.

In a chain like this:

• あきらめずに
• 頑張って
• 勝った

the earlier parts connect into the last verb. The final verb, 勝った, carries the tense for the whole statement.

So even though 頑張って is not marked as past by itself, the whole sentence is understood as past because it ends with 勝った.

This is similar to how English sometimes says:

They kept trying hard and finally won.

The earlier connected part does not need separate full tense marking in Japanese.

The subject is understood to be 私たちのチーム, the topic introduced at the beginning.

Japanese often does not repeat the subject once it has been established. So after 私たちのチームは, the listener understands that the rest of the sentence is about that same team.

So the sentence naturally means:

As for our team, it didn’t give up until the end, kept trying hard, and finally won the match.

頑張る is often translated as try hard, do one’s best, hang in there, or keep it up, depending on context.

Here, it suggests determined effort and persistence during the match. It is not just a one-time attempt. It has a feeling of continuing to push forward.

So in this sentence, 頑張って carries a strong feeling like:

• kept fighting hard
• kept pushing on
• did their best
• stuck with it

That matches the earlier phrase 最後まであきらめずに very well.

Yes, 私たちのチームは最後まであきらめないで頑張って、やっと試合に勝った would be understandable.

The core meaning would stay almost the same: Our team didn’t give up until the end, tried hard, and finally won the match.

The difference is mainly in style and nuance:

• あきらめずに sounds a bit more formal or written
• あきらめないで sounds a bit more direct and conversational

In a narrative sentence like this, あきらめずに sounds especially natural.

The comma helps show a pause and makes the sentence easier to read.

It separates:

• the buildup: 最後まであきらめずに頑張って
• the result: やっと試合に勝った

Japanese commas are often used more flexibly than English commas. This comma is not absolutely required in every case, but it is very natural here because it highlights the flow from effort to final success.

A good way to think about it is:

Topic + circumstances/actions + final result

So:

• 私たちのチームは = as for our team
• 最後まであきらめずに頑張って = without giving up until the end, they kept trying hard
• やっと試合に勝った = they finally won the match

That is a very common Japanese pattern: set up the topic, describe what happened, and put the final main action or result at the end.