Efficiency standards
[经] 效率标准
🧩 词语组成解析
n. 标准；规格（standard的复数）
🗣️ 情景例句
After studying an hour, I finally got the hang of the lesson.
我学习了一个小时，终于理解了这一课的要点。
If you have any questions on the details， feel free to ask.
如果对某些细节有意见的话，请提出来。
One hour and seventeen minutes passed and we had not even covered half the distance.
1小时17分过去了，走了还不到一半路程。