xiǎo qū mén kǒu zuì cháng tīng dào sān jù huà dēng jì yī xià nín zhǎo nǎ yī hù má fan chū shì zhèng jiàn

小区门口最常听到三句话：“登记一下”“您找哪一户”“麻烦出示证件”。

The three most common phrases heard at the residential area entrance are: 'Register', 'Which household are you looking for?', 'Please show your ID.'