The term circadian comes from the Latin circa, meaning around (or approximately), and diem, meaning day. Now, let's hear the words we learned today.

circadian一词来源于拉丁文circa和diem，前者的意思大概，后者指一天。现在我们来听听今天学到的单词。

All of the AI juju circa 2016 wasn't up to the task.

2016 年左右的 AI 技术还不足以胜任这项任务。

Henry Morgan's early life is very obscure, although most sources indicate that he was born circa 1635 in the Welsh town of Lianrumney, which today is a sub of cardiff.

利·摩根的早期生活鲜为人知，尽管大多数资料表明他大约在1635年出生在威尔士的Lianrumney镇，现在加的夫的一个分支。

You know, The Prime of Miss Jean Brody, Dowager Countess Violet Crawley on Downton Abbey. Yes, that Maggie Smith, circa 1974.

你知道，那部《简·布罗迪小姐的青春》，就《唐顿庄园》的老伯爵夫人维奥莱特·克劳利以前的电影。的，模仿那位玛吉·史密斯，大约在1974年。

By the time of the New Kingdom between circa 1570 and 1069 BCE, music was a well-established part of Egyptian life.

大约在公元前 1570 年到 1069 年之间的新王国时期，音乐已经成为埃及生活中根深蒂固的一部分。

It had a sign that read circa 1791 on it -- the year that people thought it was planted.

树上悬挂着“大约1791年前后”的标志——人们认为这种树的时间。

Basically, it's virtual reality circa 1955.

基本上，它在虚拟1955年左右的场景。

The term circadian comes from the Latin phrase circa diem, which translates to around a day.

昼夜节律一词来源于拉丁语短语 circa diem，意思大约一天。

The pyramid in the center of Tenochtitlan is known as the Temple Mayor and was built in honor of the gods Huitzilopochtli, the god of war, and Tlaloc, the god of rain in circa 1300.

位于特诺奇蒂特兰中心的金字塔被称为阿兹特克大庙，建于 1300 年左右，为了纪念战神威齐洛波契特里和雨神特拉洛克而建造的。

Hatshepsut was born circa 1508 BC.

哈特谢普苏特生于约公元前1508年。

Tuthmosis II succeeded to the throne after his father's death circa 1493 BC, but he was not the son of Ahmose, but rather a secondary wife called Mutnofret.

约公元前1493年，图特摩斯二世在他父亲去世后继承了王位，但他不阿哈摩斯的儿子，而第二位妻子Mutnofret的儿子。

According to Herodotus, the Phoenicians managed to circumnavigate Africa in a voyage in circa 600 BCE, sponsored by the Egyptian pharaoh Necho.

根据希罗多德的说法，腓尼基人在大约公元前 600 年的一次航行中成功环游了非洲，这次航行由埃及法老尼科赞助的。

There were many great kings of the era, but among the most powerful was Senusret the 3rd, circa 1878 to 1860, BCE.

那个时代有很多伟大的国王，但其中最强大的塞努塞特三世，大约在公元前 1878 年到 1860 年。

These structures began appearing as the tombs of the kings of Meroe after the Egyptian pharaoh Thutmose the first conquered the region in circa 1500 BCE, and the later campaigns of Thutmose III finished the conquest of the region.

大约在公元前 1500 年，埃及法老图特摩斯一世第一次征服该地区后，这些建筑开始作为麦罗埃国王的陵墓出现，之后图特摩斯三世完成了对该地区的征服。

Pythagoras, who lived between circa 571 and 497 BCE, developed a mathematical system to explain the movements of the planets, and so often, is considered the first Greek astronomer.

毕达哥拉斯生活在公元前 571 年至 497 年之间，他发明了一套数学系统来解释行星的运行，因此经常被认为第一位希腊天文学家。

The Boxer Codex, circa 1590, provide clues on the nature of the male babaylan sexuality.

大约 1590 年的义和团手抄本提供了有关男性巴拜兰性行为本质的线索。

The young amphibian delights in exploring his new environment – the Italian Riviera circa 1953.

这只年轻的两栖动物喜欢探索他的新环境——大约 1953 年的意大利里维埃拉。

Circa 400 BCE, Hippocrates states the importance of hygiene.

约公元前400年，希波克拉底指出卫生的重要性。

But it starts with Ken Kesey as a grad student at Stanford circa 1958.

故事始于1958年左右，当时肯·凯西还斯坦福大学的一名研究生。

So this is like circa 2013 and 2014 that time.

所以，这大约在2013年和2014年那段时间。