"综上所述"翻译成英语应该是什么？

According to the above

To sum up the above arguments，I think a proper attitude towards
综上所述，我认为恰当的态度
Therefore, it is the social environment, not lower IQ, that makes Singaporean pupils less proficient in Chinese.
综上所述，新加坡学生华文程度的不如人，是社会环境使然，并不是因为智商低。
from the above mentioned
由上所述

all in all,
in a word,
to sum it up,等好多。
above all好像多是首先这个意思吧

To sum it up,...

In conclusion.

In a word
Above all
有时候as you can see也可以吧