Cevadic acid
[化] 惕各酸; 瑟瓦酸; (Z)-2-甲基丁烯酸
🧩 词语组成解析
🗣️ 情景例句
It's hard for some older people to take all that noise.
一些老年人没办法忍受那些噪音。
Unless there is a sudden change of political situation, it is not accepted to execute the contract only partially.
除非有什么突然的政局变化，否则执行部分合同不能被接受。
Yes, they are.
是的，他们也是。