要求书的英文：
statement of claim

参考例句：

You shall submit a request, a description, and a claim.
你应提交一份申请，一份说明书和一份要求书。

statement是什么意思：
n. 陈述；声明；供述；表达；报表，结算单

contest a statement
对一项声明提出质疑

But that is an odd statement.
但是，这是个古怪的陈述。

Their statement was correct.
他们的说法是对的。

The statement is manifestly false.
这种说法明显不确。

accept a statement with some discount
不全信一种说法

claim是什么意思：
v. （提出）要求；声称；断言；需要；索取；认领
n. 要求；索赔；值得；声称；断言

advance (=put forward) a claim
提出要求

His claim to ownership is invalid.
他的所有权是无效的。

They will enter a claim for this accident.
他们将对这次事故提出索赔。

They claimed that the new law was not constitutional.
他们声称这项新法律不符合宪法。

They always claim they are a land of equality.
他们总是生成自己是自由的国度。