Katal
[化] 開特; 卡塔爾(酶活性單位;符號kat,等于mol/sl)
??? 情景例句
There's nothing wrong with hard work.
刻苦沒錯。
We are anxious to know how long it will take you to deliver the goods.
我們急于知道貴方多長時間能交貨。
You forget to write down the date of your departure.
您忘了寫離店日期了。