她的情绪时而抑郁，时而亢奋。
这个制度早已过时而且不公平，需要改变。
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.
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technologies—innovations that hold the potential to make a product line, or even an entire business segment, virtually outdated.
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.
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.
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.
过了一会儿，一个孤单的身影出现在她身后的小道上，时而驻足，时而弯腰，可是又总能快速地跟上来。
After a while, a solitary figure appeared on the path behind her, pausing and stooping occasionally, yet catching up quickly.
后来，她拒绝吃东西，现在她时而胡言乱语，时而沉入半昏迷状态。她还认识她周围的人，可是心里尽是各种奇怪的念头和幻觉。
Afterwards, she refused to eat, and now she alternately raves and remains in a half-dream; knowing those about her, by having her mind filled with all sorts of strange ideas and illusions.
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.
我们时而在小屋，时而在海边，有时还扑通一声摔倒在海滩上，一直到我们觉得很热了才停止。
We alternated between the cabana and the water, sometimes plopping on the beach a bit until we got too hot.
如果多出另外一颗行星，特别是木星大小的霸王行星，就会将轨道变乱，使得曾经宜居的行星时而进入、时而移出可居住区。
Adding another planet, especially a bullying Jupiter-sized planet, can mess with orbits and make a once-hospitable planet move in and out of the habitable zone over time.
喂养它们的女子常常跳舞取悦它们，她时而以手舞蹈，时而以足舞蹈。
And she who feeds them dances for their pleasure, and sometimes she dances on her hands and at other times she dances with her feet.
你的音调一定要丰富而清晰——时而大声时而轻柔都是必要的。
Your tone should be rich and clear - louder and softer as needed.
她嘴巴刚毅，鼻子俊俏，灰色的眼睛异常敏锐，似乎能看穿一切，眼神时而炽烈，时而风趣，时而又像在沉思。
She had a decided mouth, a comical nose, and sharp, gray eyes, which appeared to see everything, and were by turns fierce, funny, or thoughtful.
在作为这座城市标志的一家火锅店里，矮胖、头发参差的张先生时而放声高歌，时而大吃牛肚和肝脏。
Zhang said at one of the city's trademark hot-pot restaurants, where he burst into song between bites of tripe and liver.
积极心理学的很多批评不可能因为他的新书尤其是书中时而潇洒时而傲慢语气和他凌乱的编辑所动摇。
The many critics of positive psychology are unlikely to be swayed by this book, particularly given its tone, by turns cheesy and hubristic, and its sloppy editing.
从1946年起，婕玲开始在英国地名研究会工作，时而全职，时而兼职。
Mrs Gelling worked for the English Place-Name Society, formally and informally, from 1946.
眉毛算是我们最富表现力的面部特征之一，时而紧蹙，时而上扬的眉毛将我们的喜怒哀乐暴露无遗。
Eyebrows are one of our most expressive facial features-furrowed or uplifted brows leave no doubt about what we're feeling.
他以众人吃惊的速度从衣服里伸展拉长，他的声音开始变得嘶哑，时而走调，时而颤抖。他的脸蛋突然变得棱角分明，显得难看。
He grows out of his clothes with indecent haste; his voice grows hoarse and breaks and quavers; his face grows suddenly angular and unsightly.
尽管她的自我动画形象时不时地展现出她真实的内心感受，包括在“坏女孩麦圭尔”中的她——时而叛逆、时而无礼、时而粗暴，她还是一个可爱有趣的女孩。
She is portrayed as a fun teen although her animated alter ego displays her true feelings from time to time including becoming rebellious, disrespectful and rude in the episode "Bad Girl McGuire".
尽管她的自我动画形象时不时地展现出她真实的内心感受，包括在“坏女孩麦圭尔”中的她——时而叛逆、时而无礼、时而粗暴，她还是一个可爱有趣的女孩。
She is portrayed as a fun teen although her animated alter ego displays her true feelings from time to time including becoming rebellious, disrespectful and rude in the episode "Bad Girl McGuire".
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