Pentaethylated
五乙基化的
🗣️ 情景例句
and to read along with the children--their children.
和孩子们--他们的孩子们， 一起阅读。
He might have been held up in a traffic jam.
他可能因交通阻塞而耽搁了。
You work too much.
你做得太多了。