固体

1. 课程包括：电力系统，90分；讯号处理，88分；系统控制，92分；电力能源系统，92分；固体电子学，88分；通讯，94分。
   Curriculum included: Electric power systems, 90; Signal processing, 88; Systems and control, 92; Electric energy systems, 92; Solid-state electronics, 88; Communications, 94.
2. 乾酪是固体，奶是液体。
   Cheese is a solid; milk is a liquid.
3. 冰是水的固体状态。
   Ice is water in solid state.
4. 水结冰时便变成固体。
   Water becomes solid when it freezes.

体的英语翻译：