健全的法律体系是防止权力滥用的重要屏障。Jiànquán de fǎlǜ tǐxì shì fángzhǐ quánlì lànyòng de zhòngyào píngzhàng.A sound legal system is an important barrier against the abuse of power.
这片森林是村子抵挡风沙的天然屏障。Zhè piàn sēnlín shì cūnzi dǐdǎng fēngshā de tiānrán píngzhàng.This forest is the village's natural barrier against wind and sand.
高高的围墙是这个院子的屏障,外面的噪音传不进来。Gāogāo de wéiqiáng shì zhège yuànzi de píngzhàng, wàimiàn de zàoyīn chuán bù jìnlái.The high wall is a screen for this courtyard, and noise from outside cannot get in.