one's true colors​ 指一个人真实的性格、意图或本性，尤其指那些被刻意隐藏的负面特质。类似于中文的"原形毕露"或"露出真面目"。 例句解析： ​He seemed friendly at first, but showed his true colors when he started blaming others for his mistakes.​​ （他起初看起来很友好，但开始把错误推给别人时便暴露了本性。） 语境： 通过推卸责任的行为揭示了自私的本质 ​The company's true colors were revealed when they ignored customer safety to cut costs.​​ （当公司为削减成本忽视客户安全时，其真实面目暴露无遗。） 语境：利益面前暴露了缺乏社会责任的本质