汉语非常难 Chinese very hard ; Chinese is very difficult
汉语是很难学的 Chinese is hard to learn
其实学习汉语并不难 Learning Chinese is not difficult
汉语是很难学 Chinese is difficult ; Chinese is hard to learn
我发现学好汉语很难 null
汉语阅读难度模型 reading difficulty model of Chinese
汉语学习困难 chinese reading difficulties
学习汉语其实并不难 Learning Chinese is not difficult
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