Grafenberg's ring
[医] 格雷芬伯格氏环(避孕环)
🧩 词语组成解析
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
Chairman Mao said it is necessary to drill as much as possible.
毛主席说，反复操练是非常必要的。
Who told you?
谁告诉你的？
but I can't decide yet.My wife must see it first.
但我还不能决定。我妻子必须先来看一看。