O ring
un. O形环；圆形截面密封圈\\n
🧩 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
That is exactly what I wanted to talk to you about, Susan.
这正是我想要跟你谈的， Susan。
Do you have any friends?
你有朋友吗？
There were no classes this afternoon. My classmates all went to People's Park.
今天下午没有课。同学们都到人民公园去了。