• The device is an advanced solar cell, no bigger than a typical playing card, which is left floating in a pool of water.

    这种器件就是一个很先进太阳能电池,大小和扑克牌差不多,丢到水池里它可以在水面上。

    youdao

  • The device is an advanced solar cell, no bigger than a typical playing card, which is left floating in a pool of water.

    这种器件就是一个很先进太阳能电池,大小和扑克牌差不多,丢到水池里它可以在水面上。

    youdao

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