1.Taking all these factors into consideration, we naturally come to the conclusion that...
把所有这些因素加以考虑,我们自然会得出结论________
2.Taking into account all these factors, we may reasonably come to the conclusion that...
考虑所有这些因素,我们可能会得出合理的结论________
3. Hence/ Therefore, we'd better come to the conclusion that...
因此,我们最好得出这样的结论________
4. There is no doubt that ... has its drawbacks as well as merits.
毫无疑问,________有优点也有缺点.
5. All in all, we cannot live without... But at the same time we must try to find out new ways to cope with the problems that would arise.
总之,我们没有________是无法生活的。但同时,我们必须寻求新的解决办法来对付可能出现的新问题。