Trialkylated
三烷基化的
🗣️ 情景例句
This community has always been very generous.
这个社区一向是非常慷慨的。
Building is rewarding.
建造东西是有价值的事。
I'm going to see my husband. He's ill in hospital.
我要去看我丈夫。他生病住了医院。