왼쪽은

the left side

→ 왼쪽
phrase Rare #20,913
the left side 왼쪽 means “left side,” and 은 marks it as the topic: “as for the left side.” It can also introduce a contrast with another side or direction.
KO: 왼쪽은 주차장이에요.
EN: The parking lot is on the left.

왼쪽은 멈춰!

Left side stop!

— 타이타닉 (1997)

위는 아래 왼쪽은 오른쪽 이지

Up is down, and left is right.

— 나우 유 씨 미 3 (2025)

왼쪽은?

What about the left?

— 알.이.씨 (2007)

오른쪽 내리고 왼쪽은 멈춰!

Get off on the right side and stop on the left!

— 타이타닉 (1997)