1.I will conclude by saying... 最後我要説…
efore, we have the reason to believe that...因此，我們有理由相信…
things considered,總而言之 It may be safely said that...它可以有把握地説......
efore, in my opinion, it's more advisable...因此，在我看來，更可取的是…
what has been discussed above, we may safely draw the conclusion that….通過以上討論，我們可以得出結論…
data/statistics/figures lead us to the conclusion that….通過數據我們得到的.結論是，....
can be concluded from the discussion that...從中我們可以得出這樣的結論
my point of view, it would be better if...在我看來……也許更好
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