A minor illness or operation is not likely to be dangerous to someone's life or health.
不严重的
A minor is a person who is still legally a child. In most states in the United States, people are minors until they reach the age of eighteen.
未成年者
He made some minor revisions to the report before printing it out.
在将报告打印出来之前,他作了一些小小的修改。