B: Fill out the form, and put the letter inside this express mail envelope.

填好这个表，把信放在这个特快专递信封里。

youdao

Fill out the form, and put the letter inside this express mail envelope.

填好这个表，把信放在这个特快专递信封里。

youdao

The following morning, when I went out to collect the mail, I found a white envelope with the magical words, "Buy yourself a new bicycle". There was a $100 banknote inside.

第二天早上，我出去收邮件，发现了一个白色信封，上面写着“给自己买辆新自行车”这几个神奇的字。信封里有一张100美元的钞票。

youdao

When was the last time you printed a letter on letterhead and put it in an envelope to mail?

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It is harder and takes more volition to sign something, photocopy it, put it in an envelope and mail it.

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Netflix pioneered the concept of sending subscribers DVDs in the mail along with a prepaid envelope.

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