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
It's OK, Susan.
太好了， Susan。
You need an injection.
你需要打针。
Shortly afterwards, four more policemen arrived and remonstrated with the workmen.
一会儿工夫，又来了4个警察，规劝工人离开。