case in point is … 一个典型的案例是…

is often the case… 通常情况下…

stated in the previous paragraph 如上所述

the problem is not so 然而问题并没有这么简单，因此……

it‘s a pity that… 但遗憾的是…

all that…对于这一切…… In spite of the fact that…尽管事实是……

we hold opinion that… 此外，我们坚持这样的观点……

the difficulty lies in…然而，困难是…

we should pay attention to… 同样，我们要注意…

(that)…but(that)…不是，而是

has been mentioned above…正如上面所提到的…