During REM sleep, those same parts of the brain are active.

在快速眼动睡眠期，大脑同样的部分是活跃的。

This was a very, many, many years-long process and by the time the pandemic hit.

疫情期，这过程经历了很多。

Rainfall that washes pollutants out of the air during the monsoon ceases.

季风期冲刷空气污染物的降雨停止了。

The company produced the candy through air attacks during World War II.

该公司在第二次世界大战期在空袭生产这种糖果。

In the six years that intervened, I saw them once.

【intervene】期的六年见过他一次。

For countries in the northern half of the world, the longest day of the year falls during Ramadan.

位于北半球的国家在斋月期将迎来一年最长的一天。

Governments are also learning from mistakes made during the coronavirus pandemic to improve treatment for illnesses that went neglected.

政府也在新冠肺炎疫情期所犯的错误学习，以改善被忽视的疾病的治疗。

During pregnancy, a group of cells in the pituitary gland called lactotrophs start to increase in size and number.

怀孕期，垂体的一组细胞“泌乳细胞”的体积和数量都会相应增加。

House Republicans allege that the president and his family profited improperly from policy actions when Joe Biden was vice president.

众议院共和党人声称，总统及其家人在拜登担任副总统期政策行动不当获利。

While in Guangzhou, Hong overheard evangelical missionaries preaching the " good word" .

在广州期，意听到福音派传教士宣讲“好话”。

But during snowball earth, there was very little oxygen in the oceans.

但是在滚雪球地球期，海洋的氧气非常少。

It manipulates food in the mouth during mastication and deglutition.

它在咀嚼和吞咽食物期处理口腔的食物 。

The astronauts floated in space during their mission.

太空：宇航员在执行任务期漂浮在太空。

The photograph shows six men and an American flag during a battle in World War II.

这张照片展示了第二次世界大战期的一场战斗的六个人和一面美国国旗。

The more dust or clouds in Earth's atmosphere during the eclipse, the redder the Moon will appear.

日食期地球大气的尘埃或云层越多， 月球就会显得越红。

That is because many of them borrowed plentifully at low, fixed interest rates during the covid-19 pandemic.

这是因为在 covid-19 大流行期，他的许多人以低固定利率大量借贷。

During the open discussion period, a gentleman in the audience addressed a question to my two colleagues.

在公开讨论期，听众的一位先生向的两位同事提出了一个问题。

While I was waiting, I overheard a tourist complaining about the long lines and the slow service.

在等待期，意听到一位游客抱怨排长队和缓慢的服务。

But, during the Late Ordovician, a second suborder of sea scorpion emerges in the fossil record — the Eurytperina.

但是，在晚奥陶世期，化石记录出现了海蝎的第二个亚目——Eurytperina。

There are just some of the kinds of inconsistencies that became ingrained in the English language during this period.

在此期，英语根深蒂固的一些不一致之处。