They used the swimming pool, rode, lazed in the deep shade of the oaks in the heat of the day.

他们在一天之中最热的时段去游泳池游泳，去骑马，在橡树的浓荫下消磨时间。

《柯林斯英汉双解大词典》

Never go out in the heat of the day without a hat.

在白天最热的时候出门不能不带帽子。

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Choose Proper Timing: Birds don't like to be out in the heat of the day any more than birders do.

选择适合的时间：鸟儿比观鸟者更不喜欢在天最热的时候外出。

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And up to 50% of that evaporates if you water in the heat of the day, the EPA estimates.

CNN: Hey Earthling, it's Earth Day; time for a quiz

The fourth Wednesday of July 2005 was the fifteenth day of a searing heat wave in the Northeast.

FORBES: Power Brokers

Father rolled down his window, and the thick heat of the day spilled in.

NEWYORKER: Naima