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
I just called to tell you
我打电话是想告诉你
How did he get away with cheating?
他是如何考试做弊而未被发现？
The former method simply consists of setting an elephant to work and beating him until he does what is expected of him.
强硬法就是驱使象去干活，把它打到顺从为止。