1N-COUNT 颏;下巴 Your chin is the part of your face that is below your mouth and above your neck. 颏;下巴
...a double chin.
双下巴
He rubbed the gray stubble on his chin.
他揉搓着下巴上灰白的胡茬。
2PHRASE [VERB inflects]坦然面对，欣然接受(令人不快或困难的局面) If you say that someone took something on the chin, you mean that they accepted an unpleasant or difficult situation bravely and without making a lot of fuss about it. 坦然面对，欣然接受(令人不快或困难的局面) [informal]
When the police arrived he took it on the chin and apologised for the trouble he'd caused them.