翻译：n. 导入；天线引入线；与广告播放有关的节目
adj. 引入的
例句：网络 引入线；引入She took the lead in the second lap.她在第二圈时领先。Our seemingly unassailable lead in speciality manufacturing has dwindled.我们在特殊产品制造上似乎不容置疑的领先优势缩小了。They took an invincible lead in the chase for the championship.他们在冠军角逐中遥遥领先。
