Dextrase
右旋糖酶
🗣️ 情景例句
I certainly am. May I help you?
我是，我能帮您什么忙吗？
A little of every thing is nothing in the main.
每事浅尝辄止，事事都告无成。
Yes. He wanted you to ring him.
留了。他要你给他打电话。