Lactamase
n. [生化]内酰胺酶
🗣️ 情景例句
if that's what you mean.
是这个意思吧。
I want to go coach, and I'd prefer a morning flight.
我要普通舱，还有，我喜欢早上的班机。
Yes, but what are in the boxes?
哦，那箱子里是什么呢？