be good for studying 对学习好
For students, doing a part-time job should never be more important than studying for good grades.
对于学生来说，做兼职工作永远不应该比学习取得好成绩更重要。
Make him do some eye exercises after studying, which would be really good for his sight.
让他在学习完之后，做一下眼保健操，这对他的视力很有好处。
This can be a good thing when studying for a test or preparing for some other challenge.
这对于学习考试或是准备迎接其他挑战来说很棒。
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