Pentynoic acid
[化] 戊炔酸
🧩 词语组成解析
🗣️ 情景例句
She sounds upset.
她听起来有点不对劲。
We can't decide where to go.
我们不能决定去那里。
I've been working at a meat factory for about two months now.
大约两个月来，我一直在一家肉厂干活。