任务书的英文怎么说

任务书的英文：
requirement

The prime contractor and the software subcontractor agree to their commitments to each other.
主签约人和子签约人互相接受他们的任务书。

Is the requirement compulsory?
必须按这个需求做吗？

In practice, this will often require a prioritization of your job requirements.
实务上，这往往需要重新调整工作的优先顺序。

All systems requiring accurate timing will require a crystal.
所有需要精确定时的系统都要用晶体。

Excision of an obnoxious passage was required.
有一段引起反感的文字必须删掉。

require or ask for as a price or condition.
要求或者请求价格或者社会地位。