请速回信 Please reply

请速付余款 Please pay the balance

不请自来的不速之客 gate - crasher ; crasher

快速中断请求 Fast Interrupt Request ; FIQ fast interrupt request

恳请速予汇款为荷 an early remittance will be appreciated

请君速订 Please order now

请求速率 Request rate

请迅速给我回复 Please give me quick reply ; Quickly please give me reply

请你说话速度慢一些 Please speak slowly

快速申请程序 fast track procedure