Circulating lubrication
[建] 循环润滑
🧩 词语组成解析
a. 循环的, 流通的\\n[经] 流动
n. 润滑, 注油, 润滑作用\\n[计] 润滑
🗣️ 情景例句
What's the capital city of France?
法国的首都是哪里？
A friend in need is a friend indeed.
患难朋友才是真朋友。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年内走的距离，