Nitriding
v. 滲氮
??? 情景例句
He's an exceptionally fine young man and should be a good husband.
他是一個很好的年輕人將來也會是一位好丈夫的。
'Tis the early bird that catches the worm.
早起的鳥先得蟲；捷足先登。
Like exercise books, rulers, pens, colour pencils, erasers and maps.
像練習本、格尺、鋼筆、彩色鉛筆、橡皮和地圖等。