英语翻译对不住大家我没说清楚，就是帮忙翻一下这句话：“这种商业信函是有固定格式的。”

"This type of business letter has its standard format."
固定格式=standard format
regular format= 正规/固定格式
specific format=特定格式
例句:
(1) In the UK,a standard business letter looks like this:
(2) In the old days,you would draft a letter in a standard format and send it to the ...
(3) STANDARD LETTER FORMAT The format of the standard letter is precisely...
(4) Thank the reader for the action he/she has not yet taken.This is a basic standard format of a cover letter.BPO cover letter is not an exception.It is also written ...

这种商业信函是有固定格式的。
This kind of business letter is with a specific format.
“固定格式”，即 specific format
希望回答对您有所帮助

This kind of business letter has its own regular format.

where's your letter???