期限的英文：
time limit
deadline
allotted time
due time

参考例句：

a terminable annuity.
一笔有期限的年金

The expiration date has already passed.
已经过了期限。

The probation period for suspension is to be counted as commencing on the date the judgment becomes final.
缓刑考验期限，从判决确定之日起计算。

When is the deadline of the loading period?
我们这批货的装船期限是什么时候？

I hope we can finish this before the deadline.
我希望我们能在最后期限之前完成这项工作。

And February 21 is the deadline for the report.
2月21日则是他们的最后期限。

Erection period
安装期限

In the course of time; in time
在期限之内

Advance a deadline By one week.
把期限提前一星期

The term of practice is tentatively fixed at half a year.
实习期限暂定半年。

time是什么意思：
n. 时间；（一段）时光；时机；机会；历史时期；时代；次；回；倍
v. 测定…所花时间；调准；调整；测定…所花时间
adj. 时间的；定时的；定期的；分期的

discrimination time
辨别时间辨别时间

It is time to go.
该走了。

They are not in step with the times.
他们跟不上时代的步伐。

limit是什么意思：
n. 限制；限量，限度；界线
v. 限制；限定

Life is limited, but there is no limit to learning.
生命是有限的，但学问是无限的。

He is a man of limited scope.
他是一个见地狭窄的人。

limit of maximum financial revenue
财政收入最大限量

deadline是什么意思：
n. 截止期限，最后期限

Holy cow! the deadline be come up.
我的天！截止日期快到了。

An agreement that provides deadlines for completion of the work.
一个规定工作完成期限的合约

Indispensable and demand task (with a pressing deadline)
硬任务