仔细想想，准确测量气温还真算是奇迹。
If you think about it, it's almost a miracle that air temperatures are accurately measured at all.
上周天气还很闷热，但刚过的周末气温下降了几度，漫步于凉风中真舒服。
Last week it was still quite hot but over the weekend the temperature dropped a few degrees. It is so nice walking with the breeze and so comfortable.
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