It is of great significance for the Security Council to hold this meeting when the Middle East issue is at a crucial juncture.

在中东问题面临重要关口的情况下，安理会举行此次会议具有重要意义。

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So if you tamper with that system at such a crucial juncture you're only creating more problems.

因此如果你在这个关键的时机打乱了这一系统，你就是在制造更多麻烦。

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Third, China is at a crucial economic juncture.

第三，中国经济正处在一个紧要关头。

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Apple lost its iconic, visionary, much-celebrated CEO Steve Jobs earlier this month at a crucial juncture for the business.

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