The ballerina bobbed a curtsy (to the audience) before leaving the stage. 那个芭蕾舞女演员在下台之前(向观众)行屈膝礼。
英英字典
剑桥英英字典
When a girl or woman curtsies, she bends quickly at the knees, with one foot in front of the other, often while holding her skirt, especially to show respect.
a movement in which a girl or woman bends quickly at the knees, with one foot in front of the other, especially to show respect