oneureun barami chagawoseo jaekis hana deo gajyeowasseo.

은/는 marks the topic, so 오늘은 means something like as for today or today, at least.

In this sentence, 오늘은 sets the scene:

• 오늘은 = as for today / today
• then the speaker comments on today’s condition

If you said 오늘이, it would sound like today is the grammatical subject in a different kind of sentence, which does not fit as naturally here.

So:

• 오늘은 바람이 차가워서... = As for today, the wind is cold, so...

This is a very common Korean pattern: use 은/는 to introduce the time or topic, then describe what is happening.

Here, 바람이 is the subject of 차갑다 (to be cold).

So:

• 바람이 차갑다 = The wind is cold

The wind is the thing that has the property of being cold, so it gets the subject marker 이/가.

This creates a nice structure:

• 오늘은 = topic/time frame
• 바람이 = subject inside that frame

A very literal breakdown is:

• Today, as for it, the wind is cold, so...

차가워서 comes from 차갑다 (to be cold / chilly) plus -아서/어서, which often means because or so.

So:

• 차갑다 = to be cold
• 차가워서 = because it is cold / since it is cold / being cold, so...

In this sentence:

• 바람이 차가워서 = because the wind was cold / since the wind was chilly

The ending -아서/어서 links the reason to the next action:

• The wind was cold, so I brought another jacket.

This is because 차갑다 is a ㅂ-irregular adjective.

With many ㅂ-irregular words, the ㅂ changes to 우 before a vowel-starting ending.

So:

• dictionary form: 차갑다
• stem change: 차가우-
• • -어서
• becomes 차가워서

Similar examples:

• 덥다 → 더워요
• 춥다 → 추워요
• 어렵다 → 어려워요

So 차가워서 is the correct irregular form.

Yes, but the nuance is a little different.

• 차갑다 is often used for something that feels cold to the touch or cold/chilly in quality
• 춥다 usually means to feel cold or the weather is cold

So:

• 바람이 차갑다 = The wind is cold/chilly
• 날씨가 춥다 = The weather is cold
• 나는 춥다 = I am cold

In this sentence, 바람이 차가워서 sounds very natural because it describes the wind itself as having a cold, sharp feel.

It means one more jacket or an extra jacket.

Breakdown:

• 재킷 = jacket
• 하나 = one
• 더 = more / additional

So:

• 재킷 하나 더 = one more jacket

In natural English, you would usually say:

• I brought an extra jacket rather than
• I brought one more jacket

But both ideas are there.

Good question. In careful Korean, clothing can use a classifier such as 벌:

• 재킷 한 벌 = one jacket/outfit item

But in everyday speech, people often omit the classifier when the meaning is obvious:

• 재킷 하나
• 가방 하나
• 커피 하나

So 재킷 하나 더 가져왔어 is very natural in conversation.

You may also hear:

• 재킷 한 벌 더 가져왔어 which is a bit more explicit.

In spoken Korean, object particles like 을/를 are often omitted when the meaning is clear.

So both of these are possible:

• 재킷 하나 더 가져왔어
• 재킷을 하나 더 가져왔어

The version without 을 sounds very natural in casual conversation.

This is extremely common in Korean speech:

• 커피 마셨어 instead of 커피를 마셨어
• 책 읽었어 instead of 책을 읽었어

So nothing is missing in an unnatural way; it is just conversational Korean.

가져왔어 means brought.

It comes from 가져오다:

• 가져오다 = to bring
• 가져왔어 = brought

It literally contains the idea of taking something and coming with it.

Comparison:

• 왔어 = came
• 들고 왔어 = came carrying
• 가져왔어 = brought

So:

• 재킷 하나 더 가져왔어 = I brought an extra jacket

It is the most natural choice here because the focus is on bringing the jacket along.

The subject is understood from context and is omitted, which is very common in Korean.

So the sentence naturally implies:

• (나는) 오늘은 바람이 차가워서 재킷 하나 더 가져왔어.
• (I) brought an extra jacket because the wind was cold today.

Korean often leaves out:

• the subject
• the object
• other information

if it is obvious from the situation.

English usually needs I, but Korean often does not.

That ending shows a casual, informal speech level.

• 가져왔어 = casual/informal
• 가져왔어요 = polite
• 가져왔다 = plain written/diary style or self-talk

So this sentence sounds like something you would say to:

• a friend
• a younger person
• someone you are close to

If you wanted a polite version, you could say:

• 오늘은 바람이 차가워서 재킷 하나 더 가져왔어요.

A helpful literal breakdown is:

• 오늘은 = as for today
• 바람이 = the wind
• 차가워서 = because it was cold
• 재킷 하나 더 = one more jacket
• 가져왔어 = brought

So literally:

• As for today, because the wind was cold, (I) brought one more jacket.

This shows a common Korean pattern:

1. topic/time first
2. reason before the result
3. object before the verb
4. verb at the end

That final-verb structure is one of the biggest differences from English.

Yes. 더 usually stays near the thing it modifies, but Korean allows some flexibility.

Natural versions include:

• 재킷 하나 더 가져왔어
• 재킷을 하나 더 가져왔어

These both mean I brought one more jacket.

If you move 더 too far away, the sentence may sound less natural or may shift the emphasis.

So for learners, the safest pattern is:

• noun + number + 더 + verb or
• noun + object marker + number + 더 + verb

No. 재킷 is a loanword from English jacket, and it is commonly used.

But depending on the clothing type, Koreans might also use:

• 자켓 as an alternate spelling in real life
• more specific words like 점퍼, 코트, 겉옷, etc.

In this sentence, 재킷 is straightforward and natural: it simply refers to a jacket.

For learners, the main point is that this is a loanword, so its meaning is easy to recognize, even if the pronunciation is Koreanized.