The dog days of summer are the hottest days of the year.

The dog days of summer是一年中最热的天气。

I've lost track of the zeitgeist these days.

近期来 我都忘了这时代的主流了。

Most commonly with days of the week and parts of days of the week.

通常搭配一周中的某天或者一周中的部分天数。

The early days of Facebook were a very scrappy time.

早期的 Facebook 是一个非常混乱的时代。

Different pair for every day of the week.

一周里每天都戴不一样的。

And all you get are three square meals a day of shame!

终日吃着三顿丰盛的耻辱大餐！

He sees lots of fish every day!

他每天都看很多鱼。

The first day of your new school.

新学校的第一天。

Jewish people celebrate eight days of Hanukkah.

犹太人庆祝为期八天的光明节。

Today is the first day of school.

今天开学了。

The hot days of summer turn cooler.

炎热的夏天渐渐变得凉爽起来。

She remembers the day of the bombing.

她还记得发生爆炸的那一天。

Britain is in 10 days of mourning.

英国已进入为期10天的哀悼期。

This is a day of unprecedented triumph...

这一天苏联太空项目。

Saturdays, the busiest day of the week...

周六 每周最忙的日子。

All this, after one day of research.

没准我还能挖出什么名人来。

Could the bad old days of economic decline be about to return?

过去经济衰落的日子会不会重来？

These are days of fun and good feelings and memories.

这是充满欢歌笑语、美好情感和无限回忆的日子。

Well, I am big believer in innovation coming out of China these days.

我始终相信如今的中国充满了创新的氛围。

Relics from the early days of Antarctic research.

这是早期南极研究的遗迹。