Multiring hydrocarbon
[化] 多环芳香烃
🧩 词语组成解析
[计] 多环
🗣️ 情景例句
Oh. I have the key. Grandpa sent it to me.
啊。钥匙在这里。爷爷寄来给我的。
Did you give it to him yourself?
你自己亲自交给他吗？
My old friend, Harrison, had lived in the Mediterranean for many years before he returned to England.
我的老朋友哈里森在回到英国以前曾多年居住在地中海地区。