49、What calls for special attention is that需要特别注意的是
50、There's no denying the fact that毫无疑问，无可否认
51、Nothing is more important than the fact that 没有什么比这更重要的是…
52、what's far more important is that 更重要的是…
53、From my point of view, it would be better if在我看来……也许更好
54、A case in point is 一个典型的例子是
55、As is often the case由于通常情况下
56、As stated in the previous paragraph 如前段所述
57、But the problem is not so simple Therefore 然而问题并非如此简单，所以……
58、But it's a pity that 但遗憾的是…
