Lubricating ring
[电] 引油环
🧩 词语组成解析
润滑的
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 six o'clock.
已经六点了。
Thank you.
谢谢。
We often call him by his nickname.
我们经常叫他的绰号。