6. it is important (necessary) to do (or: that)
7. special attention should be payed to...(or: we should pay special attention to...)
8. what we should take into consideration is +np
type 7 行动
1. (immediate, emergent, effective) measures are being taken (has been taken, should be taken) to do
2. we have made much effort, there is still more we need to make (or: we have learnt a lot, there is much more we need to learn.)
type 8 二择其一
1. if it were left for me to decide whether (why + clause)，i would, without hesitation, choose to do (or: i would prefer the former/the latter)
2. to do/np is a matter of preference.
3. it is difficult to make a choice for one can hardly gain most without losing any.
4. the difficulty lies in the fact that the advantages and disadvantages of both cases are equally obvious.
5. in fact, we may well preserve a delicate balance or compromise betwee