be responsible for …'s actions
她必须对她的行为负责。
She must take responsibility for her actions.
毕竟我要对你在这儿的行为负责
After all, I’m responsible for your behavior here.
— 蝴蝶梦 (1940)
人要为自己的行为负责。
People must take responsibility for their own actions.
你必须为自己的行为负责。
You must take responsibility for your actions.
一个人要为他的行为负责。
A person must be responsible for their actions.