a hangover from the past

• 遗留物

a hangover from the past的用法和样例：

例句

1. The use of ashes in church is a survival from an ancient rite.
   教堂使用灰烬是一种古代仪式的遗留物。
2. But Gus could furnish each ship with leftovers from other ships.
   但古斯可以用别的飞船上的遗留物装备每条飞船。