??? 情景例句
I could tell something was up by the look on their faces.
我一看他們的臉色就知道有事。
If I went with you,I'd have to be back by six o'clock
如果我與你一起去了，我將不得不在6點鐘回來。
Good. Put it on the small table, please.
好，把箱子放在那個小桌子上吧！