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1·You'll have to leave soon to make certain of getting there on time.

你得快点出发，好确保准时到达那里。《牛津词典》

2·Please make certain of the date of meeting.

请把开会日期弄清楚。

3·Please make certain of the date of the meeting.

请把开会的日期弄清楚。

4·Dany took a moment to make certain of her directions.

丹妮花了点时间确认了一下她前进的方向。

5·See to it take care of, ensure that, make certain of.

留意必定做…照顾；保证；确定。

6·To make certain of getting good seats, we hurried off to the cinema.

为了弄到好位子，我们匆忙动身去电影院。

7·The mold undergoes a visual inspection to make certain of its quality.

模具通过检查来保证它们的质量。

8·You'd better leave now if you want to make certain of getting there on time.

你要想准时到达那里就最好马上走。

9·Make certain of your position in the firm before you argue with the director.

你在和经理争辩之前，要首先弄清你在公司里的地位。

10·Now that he was on his legs, it was more difficult to make certain of his age.

虽然他已经站了起来，却叫人更捉摸不透他的年令。