The maneuvering target tracking is a challenging task. Even if in single target tracking, it is likely to miss the target because of the escape maneuver of the target.

机动目标跟踪是一个很具有挑战性的任务，即使是跟踪单目标也可能因为目标的逃避机动而失跟。

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One may go wrong in many different ways, but right only in one, which is why it is easy to fail and difficult to succeed-easy to miss the target and difficult to hit it.

一个人可以有许多不同的方式走错路，但走对路的方式却只有一个，这就是失败容易成功难——逃靶容易中靶难的原因。

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Rupert Murdoch is finding it harder than expected to introduce charges for readers browsing his newspaper websites and may miss a target of next June for the introduction of so-called "pay walls".

鲁伯特·默多克(Rupert Murdoch)发现，向浏览他旗下的各大报纸网站读者收费看起了要比他预期的难得多，这也很有可能导致他明年6月份无法实现推广所谓的“付费墙”计划的目标。

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We are set to miss the target for cutting under-five mortality by a margin equivalent to 4 million additional deaths.

UNESCO: Post-Conflict and Post-Disaster Responses

At 1.5%, Ally Financial was the only one to miss this target under the scenario.

BBC: Ally Financial sign

Gradually, the left hooks and right crosses of the champion began to miss their target and it was time for Burns to send a shudder of panic through the visitor.

BBC: Incomparable drama in Glasgow on Burns' night