常识对于生活很重要。
chángshí duìyú shēnghuó hěn zhòngyào 。
Common sense is very important for life.
我们应该具备一些常识。
wǒmen yīnggāi jùbèi yīxiē chángshí 。
We should have some general knowledge.
这道题很简单，大家应该都知道，这是常识。
zhè dào tí hěnjiǎndān ， dàjiā yīnggāi dū zhīdào ， zhè shì chángshí 。
This question is very simple; everyone should know this, it's common sense.