backup source造句

例句与造句

1. Dep - 540 auto switch on off for backup sources
   Dep - 817备用电源自动投切
2. Insert backup source diskette in drive a : . strike any key when ready
   插入源备份盘到驱动器a ：中，准备好后敲任意键。
3. It's difficult to find backup source in a sentence. 用backup source造句挺难的