Heptanal
[化] 庚醛
🗣️ 情景例句
The darkest evening of the year.
在这一年中最漆黑的夜晚 。
What flights do you have from New York to London tomorrow?
明天从纽约飞往伦敦的有哪几班机？
Though they extol the virtues of the peaceful life, only one of hem has ever gone to live in the country and he was back in town within six months.
尽管他们都交口称赞宁静的乡村生活的种种优点，但其中只有一个人真去农村住过，而且不足6个月就回来了。