Catalyzator
[化] 催化劑\\n[醫] 催化劑
??? 情景例句
A year is really a short time, and later you will be glad you postponed getting married.
一年其實是很短的，過后你將會為你推遲了婚期而感到高興的。
I ask him to stay at home.
我要求他待在家里。
He has made neat paths and has built a wooden bridge over a pool.
他修筑了一條條整潔的小路，并在一個池塘上架了一座小木橋。