认真研读教案，备课，授课，确保课程质量。

Making high quality Lesson plans preparation in English;

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晚上，他经常工作到深夜，认真地备课。

And at night, he usually works late and prepares the lessons carefully.

youdao

晚上，他经常工作到深夜，认真地备课。

And at night, he usually works late and prepares the lessons carefully.

youdao