释义
- 1. reserve
- 2. spare
- 3. alternate
- 4. backup
词语关系
Synonyms
1 itemUsage notes
Collocations
常用搭配: 备用方案 (backup plan), 备用电源 (backup power supply).
Common mistakes
备用 is an adjective or verb meaning 'reserve', not a noun. Don't say '一个备用'; use 一个备用零件.
例句
显示 1 条请准备一份 备用 方案。
Please prepare a backup plan.
AI 生成的例句会用此图标标注。