four-star
adjective [ before noun ] uk/ˌfɔːˈstɑːr/ us/ˌfɔːrˈstɑːr/
(QUALITY)
（饭店或宾馆）四星级的
A four-star restaurant or hotel is of a very high standard.
(RANK)
US（第二高的军衔）四星的
having the second highest military rank, shown by four stars on the uniform
a four-star general 四星将军
four-star
noun [ U ] UK old-fashioned uk/ˌfɔːˈstɑːr/ us/ˌfɔːrˈstɑːr/ (also four-star petrol)
(FUEL)
四星含铅汽油，高辛烷值汽油
the highest quality leaded fuel that can be used in cars
Compare: premium