acknowledge
1.下面四句意思相同：
- I acknowledge it as true.
- I acknowledge it to be true.
- I acknowledge that it is true.
- I acknowledge the truth of it.
下面两句里的as可有可无：
- I acknowledge myself (as) defeated.
- I acknowledge myself (as) an offender.
注意myself是反身代词。
2.下面三句意思相同：
- I acknowledge your letter.
- I acknowledge receipt of your letter.
- I acknowledge the receipt of your letter.
在信的开首习惯用第二句，有时用第三句，但很少用第一句。在它处习惯用第一句。例如：
- Your letter reached me two months ago. I am sorry that I forgot to acknowledge it.
