YSK You should never swim in the ocean without a lifeguard. Never. But if you do, you should know some standard safety rules.
from /r/YouShouldKnow
YSK 你不應該在沒有救生員的情況下在海里游泳。永遠不要。但如果你這樣做，你應該知道一些標準的安全規則。
YSK 你不應該在沒有救生員的情況下在海里游泳。永遠不要。但如果你這樣做，你應該知道一些標準的安全規則。
YSK You should never swim in the ocean without a lifeguard. Never. But if you do, you should know some standard safety rules.
from /r/YouShouldKnow