hard flour

例句：

1. 1.This cake is made with hard flour and eggs.
   这个蛋糕是用硬面粉和鸡蛋做的。
2. 2.The chef prefers to use hard flour for baking.
   厨师更喜欢用硬面粉烘焙。
3. 3.Hard flour is harder to digest than soft flour.
   硬面粉比软面粉更难消化。