solid caustic soda

例句：

1. 1. The cake is made of solid chocolate.
   这个蛋糕是用固体巧克力做的。
2. 2. The car was solidly built.
   这辆车结构坚固。
3. 3. The ice cream is solid and delicious.
   这个冰淇淋是固体的，很好吃。