stein 2051造句
例句与造句
- Stein 2051 is the nearest ( red dwarf + white dwarf ) separate binary system ( 40 Eridani BC is located closer ( at 16.26 light-years ), but it is a part of a triple star system ).
- It's difficult to find stein 2051 in a sentence. 用stein 2051造句挺难的