drop out (of) [drɔp aut ɔv]

以下由轻松背单词网站提供

（活动、竞赛等中）退出；辍学

You'll never go to college if you drop out of high school.如果高中辍学，你就永远不能上大学了。
The workers decided to drop out of the organization.工人们决定退组织。