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重点讲解：
1. be supposed to do sth. (按计划或期望)应当，应该，须；
Don't try to tell me what I'm supposed to be feeling.
别跟我说我到底该作何感想。
2. fill out 填，填写(表格等)；
Fill out the application carefully, and keep copies of it.
仔细填写申请表，并且保存副本。
3. hand in 上交（作业、拾到的失物等）；
I'm supposed to have handed in a first draft of my dissertation.
我本该把论文的初稿交上去了。
4. live up to 遵守（诺言）；符合，不辜负（期望）；
I tried to live up to my ideal of myself.
我努力活出理想的自我。
vt. 描述，画(尤指几何图形)，说成
