Polycyclic
a. 多环的\\n[医] 多环的
🗣️ 情景例句
It's too hard to explain.
这很难解释清楚。
Skiing is such a difficult sport that it's more work than play.
滑雪是非常困难的运动，真所谓工作高于游戏呀。
Tired of sleeping on the floor, a young man in Teheran saved up for years to buy a real bed.
德黑兰的一个人年轻人由于对睡地板感到厌倦，于是积蓄多年买了一张真正的床。