PHRASE
坦然面對，欣然接受(令人不快或困難的局面)
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.
例句
When the police arrived he took it on the chin and apologised for the trouble he'd caused them.
警察趕來時，他坦然為自己給他們造成的麻煩表示歉意。