Precontracting
v. 預約( precontract的現在分詞 )
??? 情景例句
and forgot to enter it in my appointment book.
但忘了寫到工作日記里 。
The moment John saw Mary, he fell head over heels in love with her.
約翰對瑪麗一見傾心，給她弄得神魂顛倒了。
What's it used for?
有什么用途？