?? 詞語組成解析
sir
[s?]
n. 先生;（用于姓名前）爵士;（中小學(xué)生對男教師的稱呼）先生;老師;
指向標(biāo)觸發(fā)發(fā)射機(jī)
梅紐因(姓氏)
??? 情景例句
Don't forget to write.
別忘了給我寫信。
When was the last time he wrote you ?
他給你寫最后一次是什么時候？
You can often buy things from their shop on your way home.
你可以經(jīng)常在回家的路上到商店買你所需要的東西。