The first is that its vagueness may come to be seen as a symptom of how hard it would be to carry out—that, say, domestic objections in France or Germany could thwart it.
首先便是其含糊的言辞，这也许可以表明计划实施的困难之大——比如法国与德国国内的反对之声，可对实施产生阻碍。
And they acknowledged that it's still hard to say whether things are improving, with so much uncertainty in its members' economies.
而且他们承认仍然很难说是否有所改善，而其成员的经济也有这么多的不确定性。
It classroom teaching that occupy time is at most, but again hard to say the performance of pure its teaching.
它占据的课堂教学时间最多，但又很难说清它的教学效益。
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