通过集体备课
Through collective lesson preparation
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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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