Epoxidation
[有化]环氧化作用
🗣️ 情景例句
Excuse me, but could I ask you a quick question?
对不起，我能问你一个简短的问题吗？
I wonder why they're angry.
伙计，他们为什么生气？
He was still smiling when the door opened and his wife came in.
他正笑着的时候门开了，他的妻子走了进来。