Pentynoic acid
[化] 戊炔酸
🧩 词语组成解析
🗣️ 情景例句
I wonder who he is.
我不知道他究竟是谁？
The machines will be made of the best materials and the stipulations of the contract be strictly observed.
机器将用最好的材料生产，合同的规定也将得以严格履行。
No creature has received more praise and abuse than the common garden snail.
没有一种生物所受到的赞美和厌恶会超过花园里常见的蜗牛了。