大家好
有个部份一直搞不清楚, 请大家指点迷津
Please take this copy to Senao's counter to pick up your mobile phone.
And this is the receipt for your prepayment.
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句中的 for 担任什么角色? 介系词? 介系词词组?
整句是 S + be V + N + (for your prepayment) ???
一直搞不清这句子的结构.
谢谢大家帮忙