Katalyst
n. [化] (=catalyst)催化剂
🗣️ 情景例句
Although we hadn't met for 25 years, I recognized him the minute I saw him.
尽管我们有25年未见面了，我一看见他就认出来了。
If you attend the formal dancing party, what would you wear?
如果你参加隆重的舞会，你会穿什么衣服？
Better. Thank you,Doctor.
他好些了。谢谢您，医生。