adjective · physically hard, stiff, or solid

这种木头太硬，很难锯开。

adjective, noun · strong, firm, or uncompromising in character or attitude

他在原则问题上表现得很硬。

adverb · acting with great effort, determination, or by force despite difficulty

他硬要一个人去，谁也拦不住。

adjective · having excellent quality or strong professional capabilities

他在工程界是出了名的技术硬。

adjective · (of food) filling, solid, or consisting of substantial ingredients like meat

今天过节，桌上的菜都很硬。