Actual efficiency
[机] 实际效率
🧩 词语组成解析
🗣️ 情景例句
Will you be so kind as to help me out of the difficulty?
帮助我克服困难，好吗？
Someone is using the phone.
有人在用电话。
Travelling at a height of 30,000 feet, far above the clouds, and at over 500 miles an hour is an exhilarating experience.
腾云驾雾，在30，000 英尺高空以500英里的时速旅行，这种经历令人心旷神怡。