attendance rates fall
出勤率下降
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Records show that during December and January, the two months with the fewest hours of daylight, attendance rates fall, average daily class participation drops, and grades decline.
记录表明在日光最少的十二月和一月，出席率下降，每日平均课程参加量减少，分数降低。
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