1. She led a humdrum existence—all work and no play.
   她过着相当单调的生活——只有工作，没有玩乐。
2. Working as a writer can be a very lonely existence.
   当作家会是一种很寂莫的生涯。
3. They eke out a precarious existence foraging in rubbish dumps.
   他们靠在垃圾场捡垃圾维持着朝不保夕的生活。
4. We cannot presume the existence of life on other planets.
   我们不能推定其他行星上没有生物。
5. Males and females only commingle during mating season, otherwise they live solitary existences.
   公兽和母兽只有在交配季节才混到一起，否则他们分开独自居住。
6. Since her illness, other people had become shadowy and had no real existence for her.
   自从她生病后，其他人在她眼中变得很模糊，似乎不存在了。
7. Trees owe their existence to soil.
   树木靠土壤生存。
8. New companies come into existence every year.
   每年都有新的公司开业。
9. His girlfriend is the be-all and end-all of his existence.
   女朋友是他生命中一切的一切。
10. Their lives consist of the humdrum activities of everyday existence.
    他们的生活由日常生存的平凡活动所构成。
11. What a wretched existence these people lead in the slums!
    住在贫民窟里的这些人生活多可怜呀!
12. The evidence pointed to the existence of an international smuggling network.
    证据表明很可能有一个国际走私网络存在。
13. What are the chances of these molecules springing spontaneously into existence?
    这些分子自然形成的可能性有多大？
14. He led a colorless existence.
    他过着平淡的生活。
15. He led a dreamy existence.
    他过着如梦的生活。
16. The finds from these burial grounds point to the existence of a prosperous matriarchal society.
    这些墓地中发现的东西说明曾经有过一个昌盛的母系社会。
17. Nash did not live a cloistered existence nor was he spared the shocks that flesh is heir to.
    纳什并非过着与世隔绝的生活，他同样也不能逃脱人生难免的种种打击。
18. Idolum bring into existence reality.
    幻境存在在现实中。
19. Recently, some experiments show the existence of prewhirl and reveal the asymmetrical scroll will affect the distribution of prewhirl.
    近年来，已有的实验结果显示，离心式通风机叶轮进口前的气流预旋确实存在，而且其分布形式与人们通常的想象有很大不同。
20. Prompt the general public of the existence of minorities. Foment the expressing channels of marginated groups.
    提醒市民小众的存在，拓展边缘人仕的发声渠道。

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