function requester

例句：

1. 1. The requester was verypolite and courteous.
   请求者非常礼貌和有礼。
2. 2. The requester asked fora refund.
   请求者要求退款。
3. 3. The requester provided detailed information about the product.
   请求者提供了关于产品的详细资料。