Dictionary/乘虚而入

乘虚而入 乘虛而入

chéng xū ér rù

ㄔㄥˊ ㄒㄩ ㄦˊ ㄖㄨˋ
Idiom
1to enter by exploiting a weak spot (idiom); to take advantage of a lapse

Characters

乘虚而入