难

很难

hěn nán

Difficult.

太难了

tài nán le

Too difficult.

中文很难

zhōngwén hěn nán

Chinese is very difficult.

很难说

hěn nán shuō

It's hard to say.

难学

nán xué

Hard to learn.

汉语很难

hànyǔ hěn nán

Chinese is difficult.