Definition: the expression on your face when you frown Level: C2
他带着困惑的皱眉看着我。
He looked at me with a puzzled ___frown.
听到坏消息后，他脸上刻上了深深的皱眉。
A deep ___frown was etched on his face after hearing the bad news.
她持续的皱眉表明她承受着相当大的压力。
Her constant ___frown suggests she is under considerable stress.
