We obtained good results of bilingual teaching by earnest preparation before the classes, the use of various means in the classes and enhancement of practice after classes.

通过课前精心准备、采用多种教学方法和手段，课后强化训练等，获得了较好的效果。

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The program includes English classes in the summer before school starts for those who need them.

VOA: special.2009.06.18

The beginning of fall semester, actually right before classes start,

秋季学期开始，实际上就是在开始上课之前，

加入女生社团 - SpeakingMax英语口语达人

The program's coordinator, Johnette Roberts, says teachers are evaluated before and after taking the summer professional development classes.

VOA: standard.2010.08.10

And despite growing inequality in the U.S. over the last several years, Brazil has a ways to go before there is more uniformity in the social classes.

FORBES: In Brazil: The Poor Get Richer Faster

Outside of the inherently entrepreneurial immigrant classes, the only group of Americans starting business more than before are the fifty somethings and above.

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His reputation among the scribbling classes suffered from his surly moods and stand-offish behavior long before the specter of steroids arrived to haunt the game.

NPR: Barry and the Babe: Incomparable Performances