It s crucial to test all users functionality thoroughly, no matter how tight the schedule is for implementation.

彻底测试所有用户的功能性是至关重要的，无论实现的日程安排有多紧。

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To develop a test strategy and plan, it is important to know which use cases are crucial to the functioning of the system and which are not.

要开发一个测试策略和计划，了解哪些用例对于系统功能是至关紧要的，哪些不是，这是很重要的。

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When test automation noticeably slows down with a new build, it is crucial to find out what is happening internally in the source code.

在新Build的自动化测试明显变慢时，找到源代码内部发生了什么是至关重要的。

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To me, the real crucial test is whether or not the Republican Party continues to support Bush on this policy because I suspected that if there is no real sign of improvement, and public opinion continues deteriorating, at some point, the Republican Party, sooner rather than later, will have to decide whether to take it - distance from the policy of the Bush administration.

NPR: President Bush Airs His Ideas About Iraq and Iran

But the most crucial test of the authorities' ability to quell the unrest will come next week.

ECONOMIST: Meanwhile, the government adjusts the thermostat

In the same paper, his education spokesman David Willets has said he will "stand firm" against any Conservative revolt against the new policy, saying the leadership's refusal to back more educational selection was a "crucial test" for the party.

BBC: NEWS | UK | UK Politics | Cameron warning to grammar rebels