Pentaether
五醚, 四甘醇二丁醚
🗣️ 情景例句
The weather's been very hot lately.
最近天气总是很热。
To pick your teeth
剔牙
But why did white people want to catch Africans and put them in chains?
但是为什么白人要把非洲人抓起来，戴上镣铐呢？