parameter
n
1 (mathematics数) quantity that does not vary in a particular case but does vary in other cases 参量; 参数.
2 characteristic or feature, esp one that can be measured or quantified 特点, 特性(尤指可以衡量或计量的).
3 (usu pl 通常作复数) limiting factor or characteristic; limit (限定性的)因素, 特性; 界限
We have to work within the parameters of time and budget. 我们工作受时间和财力所限.
We also make the fundamental error of announcing our resolutions to everybody so that we look even more foolish when we slip back into our bad old ways.