面对时间紧、任务重的课堂教学，通过集体备课提高教学效益显得尤为重要。
To face the heavy task of teaching in the very short period of time, it is important to improve efficiency by using collective lesson preparing.
面对时间紧、任务重的课堂教学，通过集体备课提高教学效益显得尤为重要。
To face the heavy task of teaching in the very short period of time, it is important to improve efficiency by using collective lesson preparing.
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