借由学生们遵行他们能理解的常规，“先发制人式”的老师可免去许多“后制于人式”的老师所需每天面对的纪律问题。

By following a routine that the students can count on, the proactive teacher heads off many discipline problems that the reactive teacher faces daily.

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同一天晚些时候，华纳兄弟公司发表了声明公布希斯·莱杰已经完成了他的所有戏份和后制工作，因此小丑这个角色成为了这位演员在银幕上的最后一次完整亮相。

Late the same day Warner Bros. released a statement declaring that Ledger had completed all his scenes and post-production work thus making the Joker the actor's final completed appearance in a film.

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挑选出您最满意的作品，并讨论如何进行后制工作。

Please come back to choose your favorite pictures and discuss post production with us.

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