periods

periods of artistic involution.

艺术错综复杂时。

the boom and slump periods of a trade cycle.

贸易盛衰循环。

he had long periods of depression.

他几次陷入长时间消沉。

transitory periods of medieval greatness.

昙花一现中世纪辉煌时。

during the periods of menstruation

在月经间

bouts of depression alternate with periods of elation.

经济繁荣和萧条交替出现。

it's a good idea to block in regular periods of exercise.

安排固定锻炼时间个好主意。

periods of often violent short-run price volatility.

价格常剧烈波动时。

he was a light sleeper, for long periods an insomniac.

他睡眠不好，长时间失眠。

one of the most difficult periods of her life;

她生命中最困难时；

Long dry periods wasted the land.

长干旱使土地荒芜。

He's only away for short periods, a week at the longest.

他只短外出, 最多一周。

whole periods of time are elided into a few seconds of screen.

整个时被压缩为屏幕上几秒钟。

long fallow periods when nothing seems to happen.

似乎不会生任何事情漫长而沉闷时。

prescribed drugs to control the patient's periods of mania.

药方来控制病人躁狂阶段。

One problem with this classification is that even classic homeotherms experience periods of reduced temperature.

这种分类一个，即使典型恒温动物也经历了降低体温时。

Life often seems to be marked off into different periods: schooldays,marriage,old age.

生命似乎分为三个不同时：学生时代,结婚,老年。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次冰称为「休伦冰」，因其遗迹在加拿大南部休伦湖北方岩石中清晰可见。

The function equilibrium models were successful in the simulation of the root/canopy ratio at the periods of the vegetative growth, but were poor to simulate portioning among other organs.

源汇关系模型机理性最强，可模拟任何器官间同化物分配，应用范围最广泛。

This is a dynamic period in history.

这历史上最有生气时代。

Chaucer wrote in the late mediaeval period.

乔叟写作时代中世纪末。

Adolescence is the period of transition between childhood and adulthood.

青春童年与成年之间过渡时。

Karen carefully calculated the period when she was most fertile.

卡伦仔细地计算了自己最佳受孕。

There was always a honeymoon period when Mum started a new job.

妈妈每始一份新工作总会有一阵儿新鲜劲。

His war poetry struck a chord with people who remembered that period.

他战争诗歌引起了对那个时代存有记忆人共鸣。

The athlete could face a lengthy period of suspension if found guilty.

如果被判有罪，这名运动员可能面临长停赛。

The headmaster seems to be a fixture in the school for quite a long period.

校长似乎固定在这个学校工作很长一段时间了。

How long is its latent period?

它潜伏有多长?

Long dry periods wasted the land.

长干旱使土地荒芜。

This period was the hightide of Romanticism.

这浪漫主义颠峰时。

He excels all other composers of his period.

他胜过同时代所有其他作曲家。

A bell signals the end of a school period.

铃声报知下课时间。

The adolescent period is one's best time.

青少年时一个人最美好一段时光。

His encouragement buoyed her up during that difficult period.

他鼓励使她在那段困难时恢复了乐观情绪。

Britain was a Roman dependency for a long period.

英国有很长一段时间罗马属地。

His period corresponds to the floruit of Classical Greece.

他所统治时，正古希腊全盛时。

The store will be closed for an indefinite period.

这家商店将无限关闭。

During this period all the students were actively participating.

在这节课中所有学生都积极参加。