Translation of "떨어지면" in English

그 시험에 떨어지면

If you can't pass this test,

저게 떨어지면 정면으로 절 후려칠 거예요

If that gives way, that is just gonna absolutely crush me.

갑자기 로프가 끊기는 거예요 거기서 떨어지면 죽습니다!

and suddenly it severs the rope. That then, is a death drop!