Undecynoic acid
[化] 十一碳炔酸; 十一碳一炔酸
🧩 词语组成解析
🗣️ 情景例句
We should revise our protectionist practices in trade, and promote free trade and competition.
我们应该修改我们的贸易保护主义做法，推广自由贸易和竞争。
Jeff will lose face if his friend fails to work hard.
杰夫因他的朋友不肯勤奋工作而丢了面子。
for the simple reason that I was left with several curiously shaped bits of metal which did not seem to fit anywhere.
原因很简单，因为还剩下几个形状奇特的零件似乎哪里也装不上去。