trước khi
Meaning
1 senses
▸
Used to indicate that an event or action happens at an earlier point in time than another.
vi Hãy nhớ rửa tay sạch sẽ trước khi ăn cơm.
en Remember to wash your hands before eating.
Parts
trước / khi / A compound of trước + khi …
▸
OriginA compound of trước + khi