be supposed to 应该做
supposed to do 应当去做某事
supposedly 据说地
as supposed 按预期
not supposed to 不被允许做
1. I am supposed to finish my homework before dinner.
我应该在晚饭前完成作业。
2. The meeting is supposed to start at 9 a.m.
会议原定于上午九点开始。
3. She was supposed to call me yesterday.
她本该昨天给我打电话。
4. This is the supposed reason for his absence.
这就是他缺席的所谓原因。
A: You are supposed to arrive early for the interview.
A：你应该早点到达面试地点。
B: I know, I will leave earlier next time.
B：我知道，下次我会早点出发。
1) 被认为应当的或规定的
2) 据说的、所谓的情况
3) 按照预期或计划的状态
4) 被假定真实但未证实的
1. 被认为应当如此的；预期的
e.g.The train was supposed to arrive at noon.
火车本应在中午到达。
2. 据称的；所谓的（未必真实）
e.g.The supposed expert gave incorrect advice.
这位所谓的专家给出了错误建议。
noun
1. Used to indicate what is generally believed, expected, or required, often implying uncertainty or obligation.
Synonym: expected, assumed, alleged