Diglycolic acid
[机] 二甘醇
🧩 词语组成解析
🗣️ 情景例句
If you know a man's last name, address him as 'Mr.'.
如果你知道一个男性的姓， 应该用 'Mr。' 来称呼他。
There's still hope.
还是有希望的。
Yes, that's right.
你说对啦。