Definition: If you are supposed to do something, the rules say that you should do it. Level: B2
你应该在月底前付款。
You ___are ___supposed ___to pay by the end of the month.
你不应该在这里吸烟。
You ___are not ___supposed ___to smoke in here.
我不应该在那个区域卖任何东西。
I ___was not ___supposed ___to sell anything in that area.
