one-star
/ˈwʌnˈstɑː(r)/adjective
1- having one star in a grading system (especially of accommodation) in which this denotes the lowest standard（尤指膳宿）一星级的：
a good one-star hotel.
一家好的一星级饭店。
1.1
- having or denoting the fifth-highest military rank, distinguished in the US armed forces by one star on the uniform（美军制服上表示第五高级军衔）一星的：
a one-star general.
一星将军。