语言障碍曾经影响他与当地居民的交流。Yǔyán zhàng'ài céngjīng yǐngxiǎng tā yǔ dāngdì jūmín de jiāoliú.Language barriers once affected his communication with local residents.
这条路上有很多障碍,开车要小心。Zhè tiáo lù shàng yǒu hěn duō zhàng'ài, kāichē yào xiǎoxīn.There are many obstacles on this road, so drive carefully.
缺少自信是他进步的最大障碍。Quēshǎo zìxìn shì tā jìnbù de zuì dà zhàng'ài.Lack of confidence is the biggest obstacle to his progress.