1. But the chances are against it, and there is a virtual limit on how long we can hope to remain alive, however lucky and robust we are.
    但这种可能性很小。不管我们多么幸运，多么健壮，我们所希望的长寿实际上是有限度的。

2. But I did not know that the sun could shine and the air remain cold; no one had ever told me.
    但我不知道阳光灿烂时，空气还会是冰冷的，从来没有人告诉过我这一点。

3. But because patients no longer remain sleeping logs, nurses get to know them sooner and help them recover, says one team member. "That's nice."
    但是，由于病人不再像木头似地沉睡，护士们能很快熟悉他们，并帮助他们康复起来，一位小组成员说，"这太好了。"

4. When research into cloning is resumed, human cloning should remain a research activity for an extended period.
    当克隆研究重新开始时，克隆人类应该仍然是一项历时长久的研究活动。

5. The main complicating facts of human life must remain unintelligible.
    人类生活中最为主要的日趋复杂的现实就难以理解。

6. Though Verrazano is by no means considered to be a great explorer, his name will probably remain immortal,
    虽然维拉萨诺绝对算不上一个伟大的探险家，但他的名字将流芳百世，

7. Though most foreign students remain in California, some are sent to Texas, Arizona, Idaho, Oklahoma or Virginia.
    虽然大多数外国学生将留在加利福尼亚州，但也有人要被送往德克萨斯、亚利桑那、爱达荷、俄克拉荷马及弗吉尼亚等州去。

8. The government promises it will protect the region’s native people, but questions remain as to its true level of commitment.
    巴西政府承诺，将保护该地区的土著居民，但人们对这个承诺的可信度仍心存疑虑。

9. Too many foreigners slip in as tourists and then try to remain on grounds of marriage.
    以旅游者身份进入美国、然后以结婚为理由留下来的外国人太多了。

10. The French remain afraid that their language will die out.
    法国人一直害怕他们的语言会消亡。