Some people experience shyness as a barrier to communication, but this can be broken down gradually.

有些人觉得羞怯是交际上的障碍，但这是可以逐渐克服的。

youdao

No matter what a woman tries to do to improve her situation, there is some barrier or attitude to keep her down.

不管女性如何试图改善自己的境遇，总有障碍或看法压制她们。

《柯林斯英汉双解大词典》

She had been waiting for Simon to break down the barrier between them.

她一直在等着西蒙来破除他们之间的隔阂。

《柯林斯英汉双解大词典》

His decisive victory over Republican Senator John McCain brought down the last racial barrier in American politics.

VOA: special.2009.01.03

Technology has done to the marketing of recorded music what it did a decade ago to the publishing of the printed word--lowered the barrier to entry down to just about zero.

FORBES: You, the Record Mogul

The stigma of having a resume posted online no longer exists because LinkedIn has broken down that barrier.

FORBES: You Are Interviewing For Your Next Job -- Now

Singers like Garth Brooks and Trisha Yearwood broke down the barrier between plaid and pleather in the early 1990s.

CNN: Obsessions: Crazy about country music