Undecene
[化] 十一碳烯
🗣️ 情景例句
Come in, please.
请进。
I didn't sleep well.
我没睡好。
We are really glad to see you so constructive in helping settle the problems as regards the signing of the contract.
我们很高兴您在解决有关合同的问题上如此具有建设性。