*im·por·tant/ɪm`pɔrtṇt; ɪmˈpɔːtənt/ adj 1 having a big effect or influence 重要的，重大的: important questions 重要的问题 it is important to do sth It's important to explain things to the patient. 向病人解释病情很重要。 2 having a lot of power or influence 有势力的，有影响力的: an important senator 具有影响力的参议员