Are they working longer hours at night, using daytime hours to take a much-needed break?
他们是不是晚上工作的时间更长,然后利用白天时间进行更需要的休息?
That is because, during daytime hours, the concentration of NO2 in those cities was, on average, about 20% lower on Sundays.
这是因为在这两个城市的白天时段,平均下来周日的二氧化氮浓度要低大约20%。
The first two floors are well ventilated and normally require no air-conditioning, while the top floor, with 13-foot sliding windows, heats up during daytime hours.
一层和二层通风良好,通常不需要空调,而顶层设有13英尺(约合4米)的滑动窗口,白天会升温。
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