There are no rules about what time to leave after the dinner, but it is not polite to stay too late as it implies a lack of consideration for your hosts.
餐后何时离去并没有一定的规定，不过，在主人家呆得太晚是不礼貌的，表明你不为主人着想。
Early in the morning, late in the day, that's the best time to start working out not too little, not too much, 1hour a day is all you need to keep your body healthy and fit.
晚上较早的时候，或一天较晚的时候，是开端户外活动最好的时间。不要太少，不要太多，1小时一天的运动是你坚持身体安康和苗条的需求。
Early in the morning, late in the day, that's the best time to start working out not too little, not too much, 1hour a day is all you need to keep your body healthy and fit.
晚上较早的时候，或一天较晚的时候，是开端户外活动最好的时间。不要太少，不要太多，1小时一天的运动是你坚持身体安康和苗条的需求。
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