viscosity of thinking

例句：

1. 1.The oil has a high viscosity, making it difficult to mix with water.
   这种油的黏度高，难以与水混合。
2. 2. The dough was too thick, and the viscosity made it difficult to knead.
   面团太厚了，黏度使得揉面变得困难。
3. 3. The sauce had a low viscosity, allowing it to flow easily over the pasta.
   这道酱汁的黏度低，能够轻松地流过意大利面。