Resolved questions
当人们说“这件事要两看”那是什么意思？

每件事情呢，都有两个方面。
一方面可能看着是好的，但另一方面可能是坏的。不能只光顾着一面， 凡事要考虑周全。

“这件事要两看”is not a correct expression. Better say "这件事有两面性"。
It comes from materialism's view that evey coins have two sides. So next time if you hold a neutral attitude towards a matter, You can use this expression.

You can also say:every coin has two sides