她的眼中时而出现恍惚的神情，她的思绪飘到别处。
There was a distant look in her eyes from time to time, her thoughts elsewhere.
我的腿时而疼时而不疼。
他时而害怕，时而好奇。
她的情绪时而抑郁，时而亢奋。
他能时而欺负人，时而吸引人。
这部书时而妙趣横生，时而悲悲戚戚。
他的款待及时而周到。
时而来点儿浪漫对每个人都有好处。
这个制度早已过时而且不公平，需要改变。
她的情绪总是变幻不定—时而欢喜，时而忧伤。
他时而友善和蔼，时而暴躁易怒。
安妮时而微笑，时而大笑，显然为受到瞩目而陶醉。
Annie was smiling and laughing, clearly revelling in the attention.
该共和国总统施政时而大胆，时而谨慎务实。
The president of the republic oscillated between a certain audacity and a prudent realism.
鉴别坠机意外伤亡者的工作费时而且困难重重。
The identification of the crash victims was a long and difficult task.
的确，她的脸上时而红润，时而发白。
他时而消失，时而又出现。
你将时而大笑，时而哭泣，并且熬夜读完这个令人难以置信的故事。
You'll laugh, you'll cry, and you'll stay up way too late reading this fabulous story.
越来越多的公司正在意识到变革性技术的重要性，它几乎能令一条产品线、甚至是整个业务部门都因过时而被淘汰。
More companies are learning the importance of destructive technologies—innovations that hold the potential to make a product line, or even an entire business segment, virtually outdated.
她觉得仿佛自己的脸上时而红润，时而发白。
上个星期天，唱诗班的指挥大吃一惊，时而平静，时而活泼，时而温柔，伴着钢琴立柱和美妙的音乐。
Last Sunday, the choirmaster was jumping out of his skin, stormy then still, playful then tender, on the most upright of pianos and melodies.
也许你以每晚只睡几个小时而自豪。
Maybe you pride yourselves on only sleeping a few hours a night.
这个钟是正点打点报时而不是半小时打点报时。
人们不会因为耐心排着长队等火车、公共汽车或地铁，或者坐在刮风的平台上长达半个小时而感到烦躁。
There is no irritation caused by waiting for trains, buses or underground trains, standing in long patient queues, or sitting on windy plat forms, for as long as half an hour sometimes.
人们不会因为耐心排着长队等火车、公共汽车或地铁，或者坐在刮风的平台上长达半个小时而感到烦躁。
There is no irritation caused by waiting for trains, buses or underground trains, standing in long patient queues, or sitting on windy plat forms, for as long as half an hour sometimes.
除其他弱点外，城市在独自应对空气污染时而必须采取的措施存在政治上的争议，因此也很易受到攻击。
Among other weaknesses, the measures cities must employ when left to tackle dirty air on their own are politically contentious, and therefore vulnerable.
时而打个电话，走开，又回来。
他时而支持我，时而反对我。
它时而加速时而减缓，并且当它转动时总是在摇摆。
It speeds up and it slows down and it wobbles as it rotates.
经常微笑时而大笑。
海洋表面温度的模型是时而升高时而下降，而非持续维持上升方向，这可能是重要的原因。
Patterns of sea-surface temperature which come and go, rather than absolute levels that continue to rise, may be the important thing.
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