1 (not before a noun 不用于名词前) responsible (for sb/sth);responsible (for doing sth) having the job or duty of dealing with sb/sth, so that it is your fault if sth goes wrong 应负…的责任: The school is responsible for the safety of the children in school hours. 校方负责孩子们上学期间的安全。The manager is responsible for making sure the shop is run properly. 经理有责任确保商店正常运作。

2 (not before a noun 不用于名词前) responsible (for sth) being the person whose fault sth is 应受归咎: Who was responsible for the accident? 这宗意外应归咎于谁呢？

3 (not before a noun 不用于名词前) responsible (to sb/sth) having to report to sb/sth with authority, or to sb who you are working for, about what you are doing 向…负责或交代: Members of Parliament are responsible to the electors. 国会议员要对选民负责。

4 (used about a person) that you can trust to behave well and in a sensible way （指人）可靠的，可信赖的，负责的: Marisa is responsible enough to take her little sister to school. 玛莉萨很有责任心，可以让她送她小妹妹上学。 [OPP] irresponsible 反义词为irresponsible

5 (used about a job) that is important and that should be done by a person who can be trusted （指工作）重要的，责任重大的