Nonadecylic acid
[化] 十九烷酸
🧩 词语组成解析
🗣️ 情景例句
Could I trouble you with something for a moment please?
请问可以麻烦你一下吗？
A watched pot(pan) is long in boiling.
心急水不沸；盼得越切，来得越迟。
We welcome the seasons by the riverside,
我们在河边迎接一年四季。