Katalyst
n. [化] (=catalyst)催化剂
🗣️ 情景例句
You're welcome. Good-bye.
不用谢。再见。
Do you live Kictoria Avenue?
你在维多利大道居住吗？
We've been anxious about you. We were expecting you back much earlier.
我们都为你们着急呢。都盼着你们早点儿回来。