du timeun ttokgateun jawonbongsa jokkireul ipseupnida.

The two teams wear identical volunteer vests.

Breakdown of du timeun ttokgateun jawonbongsa jokkireul ipseupnida.

• 입다: to wear
• 둘: two
• 자원봉사 조끼: the volunteer vest
• 똑같다: exactly the same; identical

Questions & Answers about du timeun ttokgateun jawonbongsa jokkireul ipseupnida.

Why is it 두 팀 and not 둘 팀?

Because 두 is the form of 둘 used directly before a counter or countable noun.

• 둘 = two
• 두 팀 = two teams

This is a common pattern with native Korean numbers:

• 하나 → 한
• 둘 → 두
• 셋 → 세
• 넷 → 네

So 두 팀 is the natural way to say two teams.

What does -은 in 팀은 mean?

-은/는 is the topic marker.

So 두 팀은 means something like:

• as for the two teams
• the two teams, ...

It marks 두 팀 as the topic of the sentence. In some contexts, -은/는 can also give a slight contrastive feeling, like the two teams (as opposed to others), but often it is just the normal topic marker.

Why isn’t there a plural marker, like 팀들은?

Because Korean often does not need an extra plural marker when the number is already clear.

Here, 두 already tells you there are two teams, so 팀 is enough.

• 두 팀 = two teams
• 두 팀들 = usually unnecessary / less natural in most neutral contexts

Korean uses plural marking much less often than English.

What exactly is ?