1 sentence

1. 谢谢您在百忙之中抽出时间回复我的信件。

   xiè​xie nín zài bǎi máng zhī​zhōng chōu​chū shí​jiān huí​fù wǒ de xìn​jiàn.

   Thank you for taking some time out of your busy schedule to reply to my letter.

   Source: Tatoeba