a line that marks the side boundary of a playing field
同义词:out of bounds
an auxiliary line of merchandise
an auxiliary activity
同义词:avocation??/??by-line??/??hobby??/??pursuit??/??spare-time activity
remove from the center of activity or attention; place into an inferior position
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。