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
which is going out with a camera and a roll of film
那就是带着照相机和一卷底片出去久
What's the population of China?
中国有多少人口？
Fine! Why don't you get your things ready?
好极了！干吗还不把东西准备好？