N-heptylacetylene
[建] 壬炔
🗣️ 情景例句
That leaves a lot to be desired.
太不让人满意了。
He who has not tasted bitter knows not what sweet is.
不吃苦中苦，哪知甜中甜。
Nearly a week passed before the girl was able to explain what had happened to her.
几乎过了一个星期，那姑娘才能讲述自己的遭遇。