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
Hi.
你好！
What is happening down there?
下面发生什么事情？
I opened the cupboard door and then stood in front of it petrified.
我打开柜门，站在柜门前一下惊呆了。