HSK 7-9
后备
hòubèi形名
reserve; backup
仓库保留一套后备电源。
Cāng kù bǎo liú yí tào hòu bèi diàn yuán.
The warehouse keeps a backup power supply.
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Other HSK words sharing a character
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Appears across levels (7-9) in the HSK 3.0 word list.