Caprolactam
n. [化]己内酰胺
🗣️ 情景例句
I care about the practical things.
我关心实用的事物。
I'll need an economy ticket with an open return.
我要一张经济舱，回来时间不定的来回票。
When I boarded the train, I could not help noticing that a great many local people got on as well.
上车后，我不禁注意到许多当地人也上了车。