Portlandite
n. [礦]氫氧鈣石
??? 情景例句
She had to work her way through law school.
她必須半工半讀學法律。
With the rate of inflation I borrow money from the bank.
由于通貨膨脹，我要向這家銀行貸款。
I didn't know she could swim. Who taught her?
我不知道她會游泳。誰教她的？