Pentadecanoic acid
[化] 十五烷酸
🧩 词语组成解析
🗣️ 情景例句
I would prefer a non-smoking room.
我想要一间不许吸烟的房间。
I haven't seen you for ages.
好久没见了。
He waited until the volcano became quiet and he was able to return two days later.
他等到火山平静下来，两天以后又返回去。