详细解释:n. 驿马, 替班, 中继, 接力
vt. 分程传递, 转播, 使接替
vi. 接力传送, 转播
【化】 继电器; 替续器
【医】 交接, 更代
【经】 补充, 接替, 替班; 补充物资
词型变化：
动词过去式:relayed过去分词:relayed现在分词:relaying第三人称单数:relays英语解释：
名词 relay:
the act of passing something along from one person or group to anothera crew of workers who relieve another crewa fresh team to relieve weary draft animalselectrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit同义词：electrical relay