1. Because your views may clash with the different beliefs, norms, values, and traditions that exist in different countries,
    因为你的观点可能会与存在于不同国家的不同信念、准则、价值观念和传统发生冲突。

2. Banks stocked with the frozen sperm of geniuses already exist, but they haven't created a master race because few women are queuing up to get pregnant this way.
    已经有了贮存天才的冷冻精子的精子库，但它们还没有生成一个优等族，原因是很少有妇女排队等候以这种方式怀孕。

3. While regular schools still exist, the virtual classroom plays an important role in today's learning community.
    虽然常规的学校依然存在，但虚拟课堂在今天的教学领域中起着重要的作用。

4. That does not prove that it does not exist;
    这并不是证实不存在噪音对健康的影响。

5. There are one hundred thousand million stars in our own Milky Way alone, and then there are three thousand million other Milky Ways, or galaxies, in the universe. So the number of stars that we know exist is now estimated at about 300 million million
    仅我们的银河系就有1000亿颗星，况且在宇宙中还有30亿个天河，即银河系。因此，我们所知道的现有恒星数目估计约有30亿X1000亿颗。

6. Though these large machines still exist, many of their functions have been taken over by small powerful personal computers, commonly known as PCs.
    虽然这种大计算机仍然存在，但它们的许多功能已被体积小但功能齐全的个人电脑--即我们常说的PC机--所代替了。

7. Three major health trends exist as we begin the new century.
    在我们迈入新世纪之际，健康方面呈现出了三大趋势。

8. There is general agreement that genuine biological differences exist between individuals; geniuses need to be lucky in both their genes and their parents.
    人们普遍认为，个体之间存在着生理差异，要成为天才必须幸运地既拥有天才的基因，又拥有能造就天才的父母。

9. Now, all there was left with him was a desire to be permitted to exist, with now and then a little breath of genuine life, such as he was breathing now.
    而现在他只求能生存，只是偶尔才体验到一丝真正的生活的气息，就像此刻。

10. No matter how society may classify me as invisible and powerless, I exist.
    不管社会怎样认为我已无足轻重，无能无力，我仍然存在。