Nonadecanoic acid
[化] 十九酸; 十九烷酸
🧩 词语组成解析
🗣️ 情景例句
I have to sign copies of my book for a lot of people
我还必须为许多人在我的书上签名
Whom will you send that to?
你将把那个送给谁？
Because it's winter now. The weather here is very cold in winter, isn't it?
因为现在是冬天。这儿的冬天天气非常冷，对吗？