To his surprise a check for that amount, accompanied by a contract, came by return mail.

出乎他意料之外，寄回了一张五百元的支票和一纸合同。

youdao

Since the bill is overdue, would you please send us your check back by return mail?

由于这张账单过期未缴，能否请你用回函寄回你的支票呢？

youdao

With these facts before you , we feel sure that you will send us your check by return mail.

有鉴于此, 相信贵方将随复函寄来支票, 特此致谢。

youdao

In return,he had to promise that the mail would travel from Saint Louis,Missouri, to San Francisco,California, in twenty-five days or less.

VOA: special.2010.04.26

Another fifth send money orders via the post office and receive their order by return mail.

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