Contact lubrication
[计] 触点润滑
🧩 词语组成解析
contact
['kɑntækt]
n. 接触;触点;[医]（传染病）接触人;门路;
vt. 使接触;与…联系;与…通讯（或通话）;
vi. 联系，接触;
con共同+tact接触→共同接触 → 接触；联系
n. 润滑, 注油, 润滑作用\\n[计] 润滑
🗣️ 情景例句
Oh, it's a quarter to four,
噢 ，差十五分就四点了，
What would you have done last night if you hadn't had to study?
如果昨晚你不必学习你会做什么？
Where's that?
苏格兰在什么地方？