n. 限定因素；界限，范围
set/define the parameters 制订╱设定规范
List the parameters first. 画个范围
Start from there, but remember to stick to the parameters of the assignment. 紧扣作业规定的主题范围
We had to work within the parameters that had already been established. 我们必须在已设定的范围内工作。
BrE /əˌbriːviˈeɪʃn/