Pentaethylated
五乙基化的
🗣️ 情景例句
Good luck.
祝你好运。
The doctor said I looked worried and nervous.
医生说我看起来太忧郁和紧张了。
I realized sadly that I had been completely defeated by their ingenuity.
我懊丧地感到败在了足智多谋的蚂蚁的手下。