consisting of two members or parts that are usually joineda binary star is a system of two stars that revolve around each other under their mutual gravitation
a binary star is a system of two stars that revolve around each other under their mutual gravitation
bipartite, double, double-barreled, double-edged, dual, duplex, twin, twofold
mated, paired
single
unpaired
in the 15th century
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。