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1·There will be certain people who'll say I told you so!

会有某些人说，“我告诉过你了！”《柯林斯英汉双解大词典》

2·He had to be certain. There could be no room for doubt.

他必须确定无误。不能有任何的犹疑。《牛津词典》

3·If you want to be certain of getting a ticket, book now.

要想有把握买到票，现在就得预订。《牛津词典》

4·If they followed the road, they would be certain to reach a village.

如果他们沿着这条路走，一定会抵达一个村庄。《柯林斯英汉双解大词典》

5·There may be certain times of day when smokers crave their cigarette.

一天中可能有那么几次吸烟者特别想叼上烟。《柯林斯英汉双解大词典》

6·She would break my biscuits in half to be certain I wouldn't choke.

她会把我的饼干掰成两半，以确保我不会噎着。

7·What Descartes has done is find at least one thing that he can be certain of.

笛卡尔所做的就是找到了至少一件他能确定的事。

8·To be certain that Rollie was talented, Mr. Ross ran a bright chimp through the same process and compared the results.

罗斯先生为了确认罗妮的确聪明，他对一只聪明的黑猩猩进行了相同的研究，并比较了研究结果。

9·The third, and most potent limitation is that it is not possible to be certain that the infant's response was due to the stimulus presented or to a change from no stimulus to a stimulus.

第三也是最有力的限制在于婴儿做出的是面对刺激的反应，还是从受到刺激到没受到刺激的变化，这是无法确认的。

10·There be certain chemicals in fertilizers used to crop-dust cotton that affect the unborn fetus.

作物粉尘中使用的化肥中有某些化学物质会影响胎儿。