Pentynoic acid
[化] 戊炔酸
🧩 词语组成解析
🗣️ 情景例句
People who take less exercise seem more vulnerable to illness.
缺少运动的人对疾病的抵抗力就差。
What's your general impression,may I ask?
不知您对我们厂总的印象如何？
Even men who can hardly drive a nail in straight are supposed to be born electricians, carpenters, plumbers and mechanics.
甚至那些连一枚钉子都钉不直的男人都被认为是天生的电工、木匠、水管工和机械师。