尽管存在语言障碍，他们很快就成了好朋友。

Despite the ___language ___barrier, they soon became good friends.

害羞是交朋友最大的障碍之一。

Shyness is one of the biggest ___barriers to making friends.

资金不足仍然是创业的一个重大障碍。

A lack of funding remains a significant ___barrier to starting a new business.