The study says there must be a complete overhaul of air traffic control systems.
研究称必须对航空交通管理系统进行彻底的改革。
We must be well prepared, there must be no slips.
我们必须好好准备，一定不要有差错。
"In that cave," he said to himself, "there must be a fire."
“在那个洞里，”他自言自语道，“一定有火。”
It makes them feel like there must be something wrong with them.
它让他们觉得自己一定有什么问题。
In 2009, Martine Postma from the Netherlands decided there must be a better way.
2009年，来自荷兰的马丁·波斯马断定一定有更好的办法。
Peter thought for a minute and said, "If Anthony has a bad opinion of me, there must be something wrong with me."
彼得想了一会儿说：“如果安东尼对我的评价不好，那一定是我有什么问题。”
She thought there must be more gold and silver.
她认为一定还有更多的金子和银子。
Given the extraordinary diversity of life on the planet, there must be mechanisms for speciation: the formation of two species from one original species.
考虑到地球上的生命的非凡多样性，一定存在着形成物种的机制：从一个原始物种演变为两个物种。
This letter is addressed to someone else—there must be some mistake.
这封信是给别人的—一定是搞错了。
I'm sure there must be good news for them soon.
我相信他们很快就会有好消息了。
In fact, there must be something good both in China and any other foreign country.
事实上，中国和其他国家都各有优点。
In my opinion, there must be life on other planets though none has been discovered.
在我看来，虽然还没有发现，但在其他行星上一定存在生命。
Surely there must be a better way.
当然一定有更好的方法。
To learn there must be freedom.
要学习就必须有自由。
"But there must be some cure," Lizette said.
但肯定有办法治的！
We must be well prepared; there must be no slips.
我们必须准备好，一定不能有任何闪失。
Failed, there must be an experience for everyone.
失败，是每一个人必有的一次经历。
CLIVE HARRIS: Derek, there must be a way round this.
克莱夫·哈里斯：德里克，肯定会有解决办法的。
Yet for a consensus to be reached, there must be openness.
然而为了达成一致，就必须敞开心胸。
I think there must be something very shady about this contract.
我觉得这张合同里面一定有什么猫腻儿。
While the front door is closed, there must be another open for you.
当你的大门紧闭时，另一扇大门就一定会为你敞开。
Thus, to live extraordinary relationships, there must be compromise.
因此，如果想要良好的人际关系，就一定要学会妥协。
I don't believe in ghosts, but there must be something fishy going on.
我可不信有鬼，但肯定有什么可疑的东西。
Or travel, or reading, body and soul, there must be one on the road.
要么旅行，要么读书，身体和灵魂，必须有一个在路上。
Children find it exciting, and there must be a place for it in education.
孩子们发现它很好玩，它也该在教育当中有一席之地并发挥其作用。
Although we live in the cliff, there must be some earth under us that is unselfish.
即使生长在悬崖绝壁，树的脚下，也一定有一抔无私奉献的泥土。
Although we live in the cliff, there must be some earth under us that is unselfish.
即使生长在悬崖绝壁，树的脚下，也一定有一抔无私奉献的泥土。
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