Rop
再訂購(gòu)點(diǎn)
??? 情景例句
How long does it take you to get through a letter?
你寫(xiě)一封信要花多少時(shí)間？
When did you know the answer?
你什么時(shí)候知道答案？
I had a letter from my sister yesterday.
昨天我收到了姐姐的一封信，