Nonadecylic acid
[化] 十九烷酸
🧩 词语组成解析
🗣️ 情景例句
His studies advanced steadily.
他的学业不断进步。
You're bound to feel that way at first, I guess.
我想，一开始都会有这样的感觉。
Oh, and please keep together. We don't want any of you to get lost!
噢，请大家靠拢一些。我们不想丢下任何一位同学！