remnant ---- 残余(名词)
英文释义
(noun) Something which remains when other similar parts are used, consumed, or no longer exist.
例句
A few broken towers and an old stone gateway are today's only remnants of the ancient city's great protective walls.
今天,这座古城雄伟的护城墙只剩下了几座破败的望楼和一扇旧石门。