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
How's Donald?
Donald怎么样？
To mold clay
铸模
for she had sixteen watertight compartments.
因为船由16个密封舱组成，