Methylmalonic acid
[化] 异丁二酸; 甲基丙二酸
🧩 词语组成解析
🗣️ 情景例句
By this time next week we shall be in London.
下星期的这个时间我们将在伦敦。
What's this?
这是什么？
when he knew that he was dying, he made me promise to go on my own.
他知道自己已奄奄一息，于是他要我答应一定单独回故乡一趟。