n. 备份
n an accumulation caused by clogging or a stoppage
n someone who takes the place of another (as when things get dangerous or difficult)
n a musical part (vocal or instrumental) that supports or provides background for other musical parts
n (computer science) a copy of a file or directory on a separate storage device
n the act of providing approval and support
- 原型: backup
英汉双解字典由 ECDICT 提供