mean business基本解释
认真的，严肃的
mean business网络解释
1. 是当真的：may as well 最好,不妨 | meanbusiness 是当真的 | measure up to 符合,达到,够得上
2.
2. 不是开玩笑：May West 救生衣 | meanbusiness 不是开玩笑 | mean to say 你是说...
3. 说一不二：说一不二 Meanbusiness. | 例句:When I give you my words, I do meanbusiness. | 同义:说话算数 Keep one's word.
4. mean business的意思
4. 是认真的：on business 因公,因事 | meanbusiness 是认真的 | but for 倘没有,要不是