I work from eight-thirty in the morning to six in the evening. At noon I have an hour's break for lunch.
由早上八时三十分到下午六时。在中午，我有一小时吃午饭。
From this perspective, sleeping until noon on Saturday is not enough to pay back the ten lost hours as well as meet your nightly requirement of eight;
从这个角度说，周六睡到中午并不能满足每晚八小时的睡眠需要，也不够偿还缺失的十小时睡眠；
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