Katalyst
n. [化] (=catalyst)催化剂
🗣️ 情景例句
Lots to be thankful for.
要感谢的事很多。
Would Dr.Block be able to see me at 9:30 tomorrow?
明天9点半布洛克医生能给我看病吗？
She then immediately spelled the word j-u-m-p for me.
紧接着，她又为我拼写j-u-m-p这个单词。