Within academic departments, tenure, combined with age-discrimination laws, makes faculty turnover—critical for a university to remain current in changing times—difficult.

在学术部门中，终身教职加上年龄歧视法，使得教职人员流动变得至关重要，大学要想在变化的时代保持与时俱进是很困难的。

youdao

The age of 21 is such a critical junction in life and that's why we have so many friends then.

21岁是我们人生中关键的十字路口，所以我们的社交圈会在21岁达到顶峰。

youdao

But also I think those Ice Age conditions were critical as well.

但我认为当时冰河时代的客观条件也是极为关键的。

youdao

Its inventors say that is the age kids develop their critical thinking abilities.

VOA: special.2010.06.04

Agricultural villages will have existed all over the place in the late Stone Age, in the Neolithic Period, as it is known. But there is a difference and the critical difference is that a city contains a number of people who do not provide for their own support.

农业村庄在石器时代后期,以及新石器时代随处可见,但二者是有区别的,最重要的区别在于,城市能容纳,相当数量,无需自给自足的人口

耶鲁公开课 - 古希腊历史简介课程节选

But some analysts are critical about the age of some of the bank's IT facilities.

BBC: A woman stands at a cash machine

The Clinton administration said while childhood immunization rates are currently at all-time highs, with 90 percent of children receiving the most critical vaccines by age 2, low-income and minority children are less likely to be immunized.

CNN: Clinton to order immunization assessments

We have to create a new ecosystem in which we see ourselves as part of the critical conversations of our age and feel equally entitled and compelled to narrate them.

CNN: How to have more Sheryl Sandbergs