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Most air travellers would be prepared to pay more to be sure of travelling safely.多数乘飞机的旅客都愿意多付点钱以确保飞行安全。Without research we can't be sure of the size of our market or even who our market is.没有市场调查我们就无法确定我们的市场大小，甚至连哪些人是我们的顾客也不知道。The crew must often sound the bottom to be sure of enough water.水手们必须时常探测河底深度以肯定有足够的水深。You can always be sure of Kay.你完全可以信任凯。Arriving on foot, he could be sure of taking his men unawares.步行到达，他确信会使手下的人大吃一惊。You can be sure of a friendly welcome at all our hotels.在我们的任何酒店你都一定会受到热情接待。You need to be sure of your facts before making any accusations.你提出指控之前需要对自己所掌握的事实有把握。It's best to leave early if you want to be sure of arriving on time.要想确保准时到达，你最好早点出发。He likes to be sure of his bodily comforts.他注重物质上的舒适。There's one thing you can be sure of – you won't get any help from the government.有件事你可以肯定，你从政府那儿得不到任何帮助。Under cross-examination, the psychiatrist admitted that he could not be sure of his diagnosis.经反复盘问，这位精神科医生承认，他对自己的诊断没有把握。She looked over her shoulder to be sure of her footing.她扭头看了看后面以确认自己是否站稳了。United must beat Liverpool to be sure of winning the championship.曼联队要稳拿冠军就必须打败利物浦队。A lot of people think that it's better to pay for their education so that they can be sure of getting quality.许多人认为最好是接受付费教育，这样能确保教学质量。The fishermen couldn't always be sure of a good catch.渔民们并非经常有把握捕到大量的鱼。 |