请看外电相关报道:Federline appeared in the movie "You Got Served" and performed as a backup dancer for singer Justin Timberlake, Spears' former boyfriend(前男友). He was previously involved with actress Shar Jackson of TV's "Moesha." Federline and Jackson have two children.
在这段话中,词组“backup dancer”值得一提,汉语中的“伴舞演员”就可用它来表达。“Backup”在这里指为主唱“伴奏”、“伴唱”或“伴舞”,如:backup band(伴奏乐队);band singer(伴唱歌手)。
另外,我们常说的“备份”也可用“backup”来形容,如:backup file(备份文件);backup diskette(备份软盘)。