人体英语趣说之cell细胞

cell 细胞 The cell is the smallest unit of the human body ，which is made up of countless cells. For example, the brain is made up of brain cells. cell can also refer to a small room for a single person to live in ，like a prison cell. You know what a battery cell is, don't you? It produces electricity. Today we are trying to make use of the sun's energy ，and scientists have invented solar cells to produce electricity. cell是人体的最小单位（细胞 ），人体就是由无数的细胞构成的。例如，脑子就由脑细胞构成。 cell也可以指一个人居住的小屋，例如，监狱中的囚室。 你知道什么是battery cell电池吗？它能生产电力。现在我们正尝试利用太阳能，科学家已经发明了太阳能电池来发电。