Without classes, lot's of students take the summer as an opportunity to work.

由于暑假没有课程，许多的同学把暑假当成一个兼职的好机会。

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Increased academic pressures have left 30 percent of kindergarten classes without any recess.

不断增加的学习压力使得30%的幼儿园课堂没有任何休息时间。

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You can now keep your PC in trim without needing night classes.

CNN: Cutting Edge: Into The New Millennium

Taught only sporadically, for 30 minutes a day, they can sit through years of classes without mastering the language of their adoptive country.

ECONOMIST: Ron Unz, swimming instructor

At less than four pounds1 and battery life for the entire school day, students can easily carry the laptop between classes without the need to recharge.

ENGADGET: Lenovo adopts Chrome OS, intros ThinkPad X131e Chromebook for schools