write a thank-you letter

Mr. BEAVER: I don't know... I'll write a thank-you letter in the newspaper, that's what I'll do.

海狸先生：我不知道……我要在报纸上登一封感谢信，我会这么做的。

I have a thank you letter I need to write but there are two more people I need to send a letter to also and it would be efficient to send them at the same time.

我要给你写封感谢信，但是我还得给另外两个人写信，只需要写一封信，同时发给他们，这样更有效率，因为还没给他们写，所以也没给你写。

Remember to call your hostess the next day, or write her a short 'thank you' letter.

记得第二天给女主人打个电话，或给她写个简短的致谢便条。