take it upon oneself (自己承担责任)

Idiom Responsibility

含义

to decide to do something without being asked or required

决定在没有被要求或要求的情况下做某事 (jueding zai meiyou bei yaoqiu huo yaoqiu de qingkuang xia zuo mou shi)

例句

"She decided to take it upon herself to organize the event."

"她决定自己承担责任来组织这个活动。" (Ta jueding ziji chengdan zeren lai zuzhi zhege huodong)