knocksthout ofsb
—phrasal verbwithknockverbuk/nɒk/us/nɑːk/
If aqualityisknockedout of someone, theylosethatqualitybecause thesituationthey are in does notallowit toexist.
使（某人）丧失（某种品质）
AnycreativityI had wassoonknockedout of me atschool.在学校，我所拥有的任何一点创造力都很快丧失殆尽。