Ring lubrication
[机] 环圈润滑
🧩 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;
n. 润滑, 注油, 润滑作用\\n[计] 润滑
🗣️ 情景例句
Rome wasn't build in a day.
伟业非一日建成。
By falling we learn to go safely.
吃一堑，长一智。
I'd like to give you one of our new catalogs.
我们有新目录想给你