The second area is about communications.
第二点就是交流。
You can learn about communications and the environment as well as maths, physics and chemistry.
你不仅能了解数学、物理学和化学，还能了解有关通信和环境的知识。
You can learn about communications and the environment as well as maths, physics and chemistry.
你不仅能了解数学、物理学和化学，还能了解有关通信和环境的知识。
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