back-up

短语
大学 FREQ #12964

[计] 后援; 备份 [医] 后盾(在大气中高压电流所通过距离)

词形变化

back-ups 复数 back-ups

教材释义与例句

名词

备份

形容词

作支援的

释义与例句

n.
  1. 1.

    Alternative form of backup.

adj.
  1. 1.

    Alternative form of backup

词汇关系

名词

同义词 10

support relief championship backing substitute patronage stand-in accompaniment reliever fill-in

上位词 10

part voice match equal blessing approval duplicate peer accumulation duplication

下位词 9

double replacement alternate surrogate vamp descant discant locum locum tenens

词源

Deverbal from back up.

来源：wiktionary