Trielide
第三族元素化物
🗣️ 情景例句
I can't figure out why he quit his job.
我不能理解他为什么要辞职。
A crow is never the whiter for washing herself often.
乌鸦不管怎样经常洗澡，也不会变白。
Sure, just drop in my office some time and pick them up.
没问题，什么时候到我办公室来拿都可以。