ekimae no zidouhanbaiki de mizu wo katte kara, hoomu he isoida.

駅前 literally means in front of the station:

• 駅 = station
• 前 = front / before

As a set expression, 駅前 often means the area in front of the station or the station-front area, not just the exact spot directly in front of the building.

So 駅前の自動販売機 is naturally understood as the vending machine by/in front of the station.

The の links 駅前 to 自動販売機 and makes 駅前 describe the vending machine.

So:

• 駅前の自動販売機
• literally: the station-front vending machine
• naturally: the vending machine in front of the station

You can think of の here as turning one noun phrase into a modifier for another noun.

自動販売機 means vending machine.

It is made of:

• 自動 = automatic
• 販売 = sale / selling
• 機 = machine

So the literal idea is something like automatic selling machine.

This kind of long noun is very common in Japanese.

Here, で marks the place where an action happens.

So:

• 自動販売機で水を買って
• buy water at/from the vending machine

Even though English often says from a vending machine, Japanese commonly uses で because it is the location/means where the buying takes place.

を marks the direct object of the verb 買う (to buy).

So:

• 水を買う = to buy water

The thing being bought is 水, so it takes を.

買って is the て-form of 買う.

In this sentence, it is used before から to connect actions:

• 買ってから = after buying

The て-form is very commonly used to link verbs to other grammar patterns. Here it is not a command or request; it is just part of the structure てから.

〜てから means after doing ~.

So:

• 水を買ってから、ホームへ急いだ
• After buying water, (someone) hurried to the platform

It shows that one action happens first, and then the next action happens after that.

In this sentence, the order is:

1. buy water
2. hurry to the platform

Both can mean after buying, and in many situations they are very similar.

• 買ってから often feels a little more like do A, and then do B
• 買ったあとで literally means after the time of having bought it

In this sentence, 買ってから is very natural because the speaker is describing a sequence of actions:

• bought water
• then hurried to the platform

So 買ってから fits the flow very well.

ホーム is a loanword, so it is written in katakana.

In everyday Japanese train vocabulary, ホーム means train platform.

This is one of those words whose meaning in Japanese is narrower than the English source word home. It does not mean your house here. In station contexts, ホーム almost always means platform.

Both へ and に can mark direction, and in many cases both are possible.

• へ emphasizes toward
• に emphasizes destination / arrival point

So:

• ホームへ急いだ = hurried toward the platform
• ホームに急いだ is less natural here

With verbs like 急ぐ, へ is especially common because the sense is movement in a direction. That is why ホームへ急いだ sounds very natural.

急いだ is the past tense of 急ぐ, which means to hurry.

So:

• ホームへ急いだ = hurried to the platform / rushed toward the platform

It describes moving quickly because of urgency.

Japanese often omits the subject when it is clear from context.

So this sentence does not explicitly say I, he, she, or they. It just says:

• bought water at the vending machine in front of the station
• then hurried to the platform

In English, we usually need to supply a subject, but in Japanese it is often left unstated if the listener can infer it.

Japanese is basically an SOV language: subject–object–verb.

That means the main verb usually comes at the end of the clause or sentence. In this example:

• 駅前の自動販売機で = at the vending machine in front of the station
• 水を = water
• 買ってから = after buying
• ホームへ = toward the platform
• 急いだ = hurried

So the final verb 急いだ closes the sentence, which is normal Japanese word order.

Japanese does not have articles like a and the, so the phrase itself does not directly mark that distinction.

Depending on context, it could mean:

• the vending machine in front of the station
• a vending machine in front of the station

In many translations, the sounds natural if the speaker has a specific machine in mind. But grammatically, Japanese leaves that open unless context makes it clear.