Such sudden alternations from mental vacuity do sometimes occur thus quietly.

空虚的心灵有时就是这样不知不觉发生这样的变化。

Man, woman, man, in a ring of endless alternation round the table.

男，女，男，女… … 围着桌子形成圆圈，无穷交替着。

Two days passed in cruel alternations.

两天在残酷的交替中过去。

The orderly alternation of day and night made the weather warm and mild.

白天和黑夜的有序交替使天气温暖而温和。

Furthermore, a thousand or more inheritable birth defects result from alternations in gene patterns.

由于小小的基因负责编码大量身体所需的化学物质，基因丢失或者工作异常都会严重损害健康。

They are composed of heavy, compacted snow, which has been subjected to frequent alternations of freezing and thawing.

由厚重、压实的雪组成， 经过频繁的冻融交替。

In such alternations the evening winged away; till at last came the gloomy words, " Margery, our time is up" .

黄昏飞走； 直到最后传来阴沉的话语， “玛格丽，我的时间到” 。

After that, for a while, everything was merged in her brain in swimming circles of heat and blinding alternations of light and darkness.

在那之后的段时间，都在她的大脑中融合成游动的热圈和令人眼花缭乱的光明与黑暗的交替。

This cycling between sexual and asexual phases is called the alternation of generations, and it helps keep plants flourishing, from Granddaddy Succulent to Great-grandbaby Succulent — and even beyond that.

这种有性和无性之间的循环被称为世代交替，有助于保持植物的繁盛，从祖孙多肉植物到曾孙多肉植物，甚至更远。

Dark as it was getting, I could still see these changes, though but as mere alternations of light and shade; for colour had faded with the daylight.

天色越来越暗，我仍然可以看到这些变化，尽管只是光影的交替；因为颜色随着日光而褪色。

Usually it was a month of moods, with abrupt alternations of belated frost and mid-summer heat; this year, day followed day in a sequence of temperate beauty.

通常这是个心情愉快的月份， 迟来的霜冻和盛夏的酷热突然交替出现；今年，天接天， 呈现出温和的美丽。

His partner was seated at the table, solacing himself after the labours of the day by luxurious alternations between a long clay pipe and a mug of perry.

他的搭档坐在桌旁，在天的劳累之后，用根长长的陶制烟斗和杯梨酒来安慰自己。

His changes of mood did not offend me, because I saw that I had nothing to do with their alternation; the ebb and flow depended on causes quite disconnected with me.

他的情绪变化并没有激怒我，因为我发现我与他的变化无关；潮起潮落取决于与我完全脱节的原因。

One of the most controversial parts lies in an alternation where her real-life alcoholic father has been rewritten as an alcoholic mother, while the image of the father was portrayed more positively as loving and caring.

最具争议的部分之在于，她现实生活中酗酒的父亲被改写为酗酒的母亲，而父亲的形象则被描绘成更积极的面，成充满爱和关怀的人。

No more variety of light and shade for her in that darkened room; no power of action, scarcely change of movement; faint alternations of whispered sound and studious silence; and yet that monotonous life seemed almost too much!

在那间漆黑的房间，她再也没有光影变化。没有行动力，几乎没有动作变化；耳语声和勤奋的沉默的微弱交替；然而，这种单调的生活似乎太过分！

Under the influence of such changes, the living things on the earth will also change to adapt to environmental variation, such as sprouting in spring, growing in summer, alternation in late summer, ripeness in autumn and storage in winter.

生物在这种气候的变化影响下，就有春生、夏长、长夏化、秋收、冬藏等适应性变化。

" He said he would never do anything that I disapproved — I wish I could have told him that I disapproved of that, " said poor Dorothea, inwardly, feeling a strange alternation between anger with Will and the passionate defence of him.

“他说他永远不会做任何我不赞成的事情——我希望我能告诉他我不赞成那样做，”可怜的多萝西娅在心说，在对威尔的愤怒和对他的热情辩护之间奇怪交替着。