time study

名词 time study:

1. an analysis of a specific job in an effort to find the most efficient method in terms of time and effort
   同义词：time and motion study, time-and-motion study, time-motion study, motion study, work study

1. If you spend more time studying than cutting up, you'd get better grades.
   如果你能在学习上多花些工夫，而不是胡闹，你的分数会大有提高的。
2. You could with profit spend some extra time studying the text.
   你多花点时间学习课文是有好处的。