求翻译：　　智联招聘校园事业部总监朱斌也提醒道，“大学生可以利用课余适当参与社会活动，但应分清主次，切忌学习和活动时间各占50%；应保持学习时间在70%以上，而参与活动控制在30%之内。此外，对于家庭经济较为困难的学生可以适当做一些兼职，但绝不能投入过多的时间是什么意思？

Zhaopin Zhu Bin, director of Campus Division reminds us, "Students can take advantage of after school due to participate in social activities, but should distinguish between primary and secondary, should study and activity time by 50%; learning time should be kept above 70%, while participation in a

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Division Director Zhu Bin zhilianzhaopin campus also warned, "after class of college students can take advantage of the right to participate in social activities, but should distinguish between primary and secondary, avoid learning and activity 50%; study time should be maintained above 70%, and par