They have a siesta during the hottest part of the day.

他们会在一天中最热的时候小憩一会儿。

《柯林斯英汉双解大词典》

My favorite part of the day was meeting the school cook and improving the school menus for the week.

一天中我最喜欢的部分是和学校厨师见面，改进学校一周的菜单。

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The first part of the day should be for learning with people.

一天的开始应该由老师来上课。

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Part of Eleanor Creesy's work was to find out how far the ship had traveled each day.

VOA: special.2009.12.23

They're required, every year, to go into the business, into one part of the business for a whole day and learn everything there is to know about that.

他们每年必须抽出一天仔细研究公司情况，公司某一方面的情况,了解所有相关信息。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

And part of the purpose of this story is to explain The origin of the observance of the Sabbath, the seventh day, as a holy day.

这个故事的部分要旨是,解释庆祝安息日的起源，第七天是圣日。

耶鲁公开课 - 旧约导论课程节选

Women should be aware that a wet T-shirt competition is an unofficial part of the day.

BBC: Spain's La Tomatina festival

And this is the best part of the day, every time we do these.

WHITEHOUSE: Poetry Student Workshop at the White House

Stratford Academy in Newham has stayed open, with pupils coming in for part of the day.

BBC: Teachers strike over protest pay stoppage