tailbacks的翻译，读音
释义：
n. <英>交通堵塞( tailback的复数形式 )
n. (American football) the person who plays tailback
n. (American football) the position of the offensive back on a football team who lines up farthest from the line of scrimmage
n. (American football) the person who plays tailback
n. (American football) the position of the offensive back on a football team who lines up farthest from the line of scrimmage