Usages of nàixīn
老师 说， 做 老师 最 重要 的 是 要 有 耐心。lǎoshī shuō, zuò lǎoshī zuì zhòngyào de shì yào yǒu nàixīn.
The teacher said that the most important thing about being a teacher is to have patience.
学 中文 需要 很多 耐心。xué zhōngwén xūyào hěnduō nàixīn.
Learning Chinese requires a lot of patience.
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