Chinese

		to not know; to have no idea of; to be ignorant of	actually; place; (nominalisation prefix)	put in order; arrange; administer put in order; arrange; administer; execute; take action on
simp. and trad. (不知所措)		不知	所	措

Idiom

不知所措

1. to be at a loss for what to do; to lose one's bearings