be supposed to

期望; 認為必須, 認為應該; 認為......

期望; 認為必須, 認為應該; 認為...必要
Am I supposed to clean all the rooms or just this one? 我是應該打掃所有的房間, 還是只這一間?
You are supposed to pay the bill by Friday. 你最晚在星期五結清這筆帳。
They were supposed to be here an hour ago. 他們應該在一小時以前到達這裡。
【口】(用於否定句中)獲准
You are not supposed to play football in the class-room. 在教室裡是不准踢足球的。
You are not supposed to kick people. 你不可以踢人。