O-ring
n. O型环（密封圈）；橡胶圈
🧩 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
I'll hold on to them for you.
我为你保管吧。
I'm sorry,but both of them are busy right now.
很抱歉他们现在很忙。
George showed me to the guestroom which, he said, was rarely used.
乔治把我领进客房，说这间很少使用。