Katal
[化] 开特; 卡塔尔(酶活性单位;符号kat,等于mol/sl)
🗣️ 情景例句
I was in the neighborhood, so I thought I'd stop by.
我就住在附近，所以我想拜访一下。
No. It's not far at all.
不用。很近的。
Letter
3第三封信