barrier是什么意思？

Although economic research and previous survey findings have shown that career interruptions related to motherhood may make it harder for women to advance in their careers and compete for top executive jobs, relatively few adults in the recent survey poin

But the barriers are disappearing, in part because journals and funding agencies worldwide are encouraging scientists to make their data public.

It might be tempting, therefore, to think that the old barriers have been broken down and equal opportunity achieved.

Now it's like a barrier has been let down.

What he tried to do was to teach a male dolphin called Bass and a female called Doris to communicate with each other across a solid barrier.

As long as it's impossible to produce something from nothing, costs are absolutely a barrier.

But the new work does go further than previous research and suggests that screen time should still be considered a potential barrier to young people's flourishing.

Even Hillary Clinton says that when it comes to college, Costs won't be a barrier.

However, despite 2 billion people worldwide already supplementing their diet with insects, consumer disgust remains a large barrier in many western countries.