After the professionalization the league have had a remarkable development, but the inside weakness and the outside threat (especially from NBA) also can not be ignored.

自职业化以来，联赛获得了迅猛发展，但同时自身存的很多问题以及来自外界的威胁与挑战(尤其是NBA)也是不容忽视的。

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The threat can come from the outside world or from our own inner cosmos.

这种威胁来自于外部世界或我们的内心和谐。

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Outside the EU, Switzerland is an obvious threat (see article).

在欧盟之外，瑞士也是一个显而易见的威胁(见文章)。

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He has been the top outside threat to complement Mason Plumlee inside.

WSJ: NBA sons making their mark in college basketball

The Orange, unbeaten at the time and ranked No. 1, were missing shot-blocking, 7-foot center Fab Melo in that game because of an academic issue, and on Monday night senior James Southerland, the team's most consistent outside threat and third-leading scorer, missed his sixth straight game because of an eligibility matter related to academics.

WSJ: No. 25 Notre Dame falls at No. 6 Syracuse, 63-47

There is also a far less obvious but potentially more dangerous threat outside of academia.

FORBES: Corporate Universities: An Emerging Threat to Graduate Business Education