Catecholborane
儿茶酚硼烷
🗣️ 情景例句
Marilyn, you're going to design my niece's dress.
Marilyn现在就开始设计我侄女的结婚礼服。
I know the boy whose father is a missionary.
我知道那个男孩的父亲是传教士。
We stopped in Moscow on the way, but only for an hour or two, so there was no time to go into the centre of the city.
我们在莫斯科停了一下，但只停了一两个小时，所以没有时间去市中心玩。