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

既然“无米成炊”是不可能的，费用就一定会是一个障碍。

youdao

Language is certainly a barrier for many people.

对许多人来说，语言当然是一个障碍。

youdao

A truck hit a barrier and overturned.

一辆卡车撞上路障翻倒了。

youdao

Mulch forms a barrier between the soil and the air.

VOA: special.2009.06.30

Some form what are called megakaryocytes which become platelets, which are responsible for clotting, for forming a barrier if your circulatory system gets injured so you don't bleed.

还有一些类型的细胞称为巨核细胞,生成有凝血作用的血小板,在你的循环系统受损时形成止血屏障

耶鲁公开课 - 生物医学工程探索课程节选

And kids were having a hard time in school just because of the language barrier.

在校的儿童们遇到的困难主要来自于语言沟通障碍。

帮助多文化的家庭 - SpeakingMax英语口语达人

And their philosophy was, 'When there is a barrier don't go around it, go over it.

CNN: Man of the people

He leans over a barrier snapping photos of players as they file out through the tunnel.

NPR: Pingpong: A Chinese Obsession

Lack of roads or infrastructure is becoming less of a barrier to the exchange of information.

FORBES: Africa is Rising Fast