Solar 24/7 Power after dark remains a challenge for the solar home.

Solar 24/7家用太阳能面临的问题就是天黑以后。

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Even today, the truth about those dark days remains a delicate subject.

即使是今天，那些黑暗日子的真相仍然是一个微妙的话题。

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But he remains the dark horse.

但他仍然是黑马。

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But he remains the dark horse.

但他仍然是黑马。

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