没有语境不好翻译啊！
最接近的应该是不考虑重要的事情。或者抛弃关怀。dismiss的中文翻译
以下结果由译典通提供词典解释
及物动词 vt.
1.让...离开;把...打发走[(+from)]
He was dismissed from the hospital a week later.
他一周之后出了医院。
2.解散,遣散
The teacher dismissed the class on time.
教师按时下课。
3.免...的职;解雇;开除[(+from)]
He was dismissed from his job.
他被开除了。
4.(从头脑中)去除,不考虑,抛弃[(+from)]
She dismissed the idea of going to Paris.
她打消了去巴黎的念头。
5.律驳回,不受理
The judge dismissed the case for lack of evidence.
法官因缺乏证据而拒不受理这宗案件。
concern
名词 n.
1.关心的事,重要的事[C]
That's no concern of mine.
那不关我的事。
2.关系;利害关系[C][U][(+with/in)]
3.担心,挂念;关怀[U][C][(+about/for)]
Andrew expressed his concern.
安德鲁表示了他的关切。
4.公司,企业[C]
5.口小玩意儿;东西