responsibility
n. 责任，负责；（对不良事件所负的）责任；（道义上或法律规定的）责任（responsibility to/towards）；职责，任务；重任，职权
复数 responsibilities
例句
They frankly admitted their responsibility.
他们坦率地承认了责任。
《牛津词典》
That's too much responsibility for a child.
对于一个孩子来说，这责任是太重了。
She has sole responsibility for the project.
那个项目由她一人负责。
