(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
你们
nǐ menㄋㄧˇ ㄇㄣ˙
you (plural)[cedict]
穿
chuānㄔㄨㄢ
to bore through; pierce; perforate; penetrate; pass through; to dress; to wear; to put on; to thread[cedict]
制服
zhì fúㄓˋ ㄈㄨˊ
to subdue; to check; to bring under control; (in former times) what one is allowed to wear depending on social status; uniform (army, party, school etc); livery (for company employees)[cedict]