be supposed to do
US /bi səˈpoʊzd tə duː/
UK /bi səˈpəʊzd tə duː/
短语
应该, 本该
to be expected or required to do something according to a rule, custom, or arrangement
示例:
•
You are supposed to wear a seatbelt while driving.
开车时你应该系安全带。
•
What am I supposed to do with all this leftover food?
这些剩菜我该怎么办？