免冠

jiàn dào guó wáng yào miǎn guān

见到国王要免冠。

You need to take off your hat when you meet the king.

yìng pìn zhě zài tǐ jiǎn shí xū dài jìn qī miǎn guān zhào piàn sān zhāng yǐ zuò tǐ jiǎn zhèng míng

应聘者在体检时需带近期免冠照片三张，以做体检证明。

The job candidates need to carry three recently-taken bareheaded photos as the proof of the check-up.