Polycyclic hydrocarbon
[机] 多核烃
🧩 词语组成解析
a. 多环的\\n[医] 多环的
🗣️ 情景例句
It hurts so much when a baby gets his first teeth.
小孩子长第一颗牙齿时好痛哟。
I often watch TV at night.
我常常在晚上看电视。
It's not his work that bothers me; it's his attitude.
困扰我的不是他的工作，而是他的态度。