?? 詞語組成解析
sir
[s?]
n. 先生;（用于姓名前）爵士;（中小學生對男教師的稱呼）先生;老師;
n. 漢弗萊（男子名）
n. 宣誓書
??? 情景例句
I have to remember to put them in the bag
我必須記得將它們放進袋子里
Art is long, but life is short.
人生有限，學問無涯。
He has to take care of his sick mother.
他得照顧他生病的母親。