three-star
/ˈθriːstɑː(r)/adjective
1- (especially of accommodation or service) given three stars in a grading system in which this denotes a high class or quality, being one grade below four-star（尤指住所、服务）三星级的。
1.1
- having or denoting the third-highest military rank, distinguished in the US armed forces by three stars on the shoulder piece of the uniform（美军）三星（中将）级的。