Upper cylinder lubrication
[化] 上部汽缸润滑
🧩 词语组成解析
upper
['ʌpə]
adj. 地位较高的;上面的;内地的;地表层的;
n. 鞋帮，靴面;兴奋剂;令人兴奋的经历;
n. 润滑, 注油, 润滑作用\\n[计] 润滑
🗣️ 情景例句
Most of what we see in the fashion shows is quite impractical for daily wear.
时装表演上我们所看到的大多数服装并不适合于做日常衣着。
Who do you want to speak to ?
你要跟谁讲话？
Certainly! I'm coming now, Dad!
当然可以，爸爸，我马上就来。