Caprolactam
n. [化]己内酰胺
🗣️ 情景例句
I've been looking forward to meeting you.
我一直盼望能有幸认识你。
Happiness takes no account of time.
幸福不觉光阴过。
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。