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%，

属类：时事政治-经济学人双语版-空气污染来袭 如何保护我们的肺(下)

When the supernova first appeared in November 1572, it was as bright as Venus and could be seen in the daytime .

1572年11月，这颗超新星首次出现，当时它几乎和金星一样明亮，甚至在白天也能看到。

属类：英汉句库-article.yeeyan.org-

25% of the UK population suffer some form of sleep disorder that results in excessive daytime sleepiness.

25%的英国人都有睡眠障碍，这让他们白天格外的感到困乏。

属类：英汉句库-article.yeeyan.org-

PLMD usually causes insomnia (difficulty initiating and maintaining sleep) and, more rarely, excessive daytime sleepiness.

PLMD经常会导致失眠（难以入睡和睡眠维持困难）以及白天严重嗜睡。

属类：英汉句库-article.yeeyan.org-

Limit daytime sleep to 20-minute, power naps.

把白天的睡觉时间限定为20分钟，权当一个恢复体力的小盹。

属类：英汉句库-article.yeeyan.org-

In the daytime , he worked in manual labor: picking tomatoes, cleaning motels.

白天，他靠做点体力活养家：采摘西红柿，清洁汽车旅馆。

属类：英汉句库-article.yeeyan.org-

In the daytime , there were many stands where one could buy food and water bottles.

白天，有许多摊位提供食物和瓶装水。

属类：英汉句库-article.yeeyan.org-

Daytime : The time between sunrise and sunset.

白天：日出和日落之间的那段时间。

属类：无分类双语句库-chinafanyi.com-

Racing through daytime meals is part of the pace of life in this country. Working time is considered precious.

白天吃饭时人们也都匆匆忙忙，这部分地反映出这个国家的生活节奏。人们认为工作时间是宝贵的。

属类：中国大陆-wenku.baidu.com-

Daytime temperatures can reach 40˚C.

白天的气温可以达到 40 摄氏度。

属类：综合句库--