你在离开中国之前给我送了那本书，谨写此信以表达我衷心的感谢。
I'm writing to show my sincere appreciation for the book you gave it me before you left China.
中国人表达敬意的方式有很多种。
There are many ways in which Chinese people express their respect.
里面提到的中国人表达尊重的方式有多少种？
How many ways in which Chinese people express their respect are mentioned?
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