备用 | bèi yòng | reserve; spare; alternate; backup |
维基百科 | Wéi jī bǎi kē | Wikipedia (online encyclopedia) |
Wéi jī Bǎi kē | Wikipedia (online encyclopedia) | |
备用 | bèi yòng | reserve; spare; alternate; backup |
维基百科 | Wéi jī bǎi kē | Wikipedia (online encyclopedia) |
Wéi jī Bǎi kē | Wikipedia (online encyclopedia) |