Polyenoic acid
[化] 多烯酸
🧩 词语组成解析
🗣️ 情景例句
I'll give them your regards.
我会向他们转达你的问候。
We would be glad to start business with you.
我们很高兴能与贵公司建立贸易往来。
The boy was too nervous to speak.
那男孩紧张得说不出话来。