sidelines
名词 sideline:
a line that marks the side boundary of a playing field
同义词:sideline, out of bounds
an auxiliary line of merchandise
同义词:sideline
an auxiliary activity
同义词:avocation, by-line, hobby, pursuit, sideline, spare-time activity
动词 sideline:
remove from the center of activity or attention; place into an inferior position
同义词:sideline