Chinese

		to protect; to defend; to guard (against)	to be not up to; to be unable to bear	to protect; to defend; to guard (against)
trad. (防不勝防)		防	不勝	防
simp. (防不胜防)		防	不胜	防

Idiom

防不勝防

1. the utmost care could not prevent it from happening; to be impossible to defend effectively