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
You should take the number 1 subway.
应当搭一路地铁。
Americans are hight mobile, and therefore may find it difficult to became deeply involued with other.
美国人的流动性，大，因此你会发现和他人深交很难。
This lunch is on me today,
今天这顿饭算我请客。