Please excuse me for opening your letter by mistake.

请原谅我错拆了你的信。

Can I send this letter to Turkey by registration?

我能把这封信挂号寄到土耳其吗？

Yes, I have had a letter from him by express.

“是的，他打发专人送了封信来。”

Well, put the letter down by the door, and leave.

“好，把信放到门边，走。”

At first the colonists sent their letters by couriers, or runners.

起初殖民者通过邮递员，跑步者运送信件。

I want to send this letter to the US by airmail.

我要把这封航空信寄到美国。

Then, using a technology called the Sanger method, each piece was sequenced letter by letter.

随后，他们运用“桑格测序法” （注：双脱氧链终止法）将每个片段内的碱基进行逐一测序 （即A, T, C, G）。

Peole kept in touch with their friends and relatives far away mainly by letter or telegram.

人们主要通过书信或电报与远方的亲人和朋友保持联系。

But Francis received the letter by hand from Boston Cardinal Sean O'Malley, one of the church's top-ranking officials.

然而，教皇曾当面收到过波士顿红衣主教肖恩·奥马利的信，肖恩·奥马利是该教会的一位高级官员。

A wizened, frail-looking wizard, bald except for a few wisps of white hair, was reading a letter by candlelight.

一个显得很虚弱的干瘪巫师，秃头上只有几缕白毛，正就着烛光读一封信。

She had saved her letter by two minutes.

她把信保存了两分钟。

Last week, the DHS answered Senator Wyden by letter.

上周，国土安全部给怀登参议员回信。

Complaining in person or by letter is generally more effective.

当面或写信投诉通常更有效。

He would shift the letters in a message forward by three places.

他会将消息中的字母向前移动三个位置。

During this time, I communicate with my family most by letter. Dad's letters range from loving to forceful to hopeless.

在这段时间里，我和家人的交流主要是通过书信。爸爸的信里有爱的，有强硬的，也有绝望的。

Sometimes people will end their letter by saying, " Regards, " and then their name.

有时人们会在信的结尾说“问候”，然后是他们的名字。

Then put those in alphanumeric order, first by letter and then by number.

帕特里克：然后按字母数字顺序排列，先按字母，然后按数字。

The little girl wrote the letter all by herself.

【herself】这个小女孩自己一个人写了这封信。

Have you done so, either by letter or in person?

你做到了吗 写信或是当面告知？

I’ll have to get this letter off by tonight.

【get】我得在今晚前把这封信寄出去。