他mother不在,他father是他mother的backup。
看不出來通。但你把back up放在一起就通了
回答: back up 可以這樣用嗎? i will call her back up right now and i will cor
由 wxcfgh85
於 2011-11-22 10:27:34
他mother不在,他father是他mother的backup。
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