Polycyclic ring
[化] 多核环
🧩 词语组成解析
a. 多环的\\n[医] 多环的
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
🗣️ 情景例句
and Susan and Robbie to Jones Beach?
Susan、Robbie去Jones海滨的事吗？
You saw that movie, didn't you? Was it interesting?
你看过这部电影了吧？精彩吗？
Somebody's knocking at the door. I'll answer it.
有人在敲门，我去开。