Photochromic compound is characterized of changing from one colour to another under UV radiation and returned to be colourless after removal of the light source.
其性能显示出某个颜色的变化，在紫外光辐射下曝光从一个颜色变成另一种颜色。然后在撤换光源后又转变回无色状态。
Life is just like a cup of clear water, colourless and tasteless, it must be needed whether you demand or not.
生活就是一杯白开水，无色也无味，你愿意与否都得需要。
Wanted to fly to you, leave this colourless sky and be with you in the glimmering sunshine.
好想飞到你身边，离开这没有色彩的天空，与你沐浴在光芒四射的阳光中。
Wanted to fly to you, leave this colourless sky and be with you in the glimmering sunshine.
好想飞到你身边，离开这没有色彩的天空，与你沐浴在光芒四射的阳光中。
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