With every change in the altitude of the sun the display changes its character；and most of all when it has sunk below the horizon，and owing to the more favourable angles a larger quantity of the coloured light is reflected toward us. Especially when there is a certain amount of cloud is this the case。

　　随着夕阳缓缓西坠，这种景观也不断变幻；尤其是在太阳沉入地平线之后，由于角度更加适宜，五颜六色的光就都发射到地面上来。遇有些许云雾，更是如此。

These，so long as the sun was above the horizon，intercepted much of the light and colour，but when the great luminary has passed away from our direct vision，his light shines more directly on the under sides of all the clouds and air strata of different densities；a new and more brilliant light flushes the western sky，and a display of gorgeous ever-changing tints occurs which are at once the delight of the beholder and the despair of the artist. And all this unsurpassable glory we owe to——dust！

　　本来，只要太阳还位于地平线之上，云雾便截住了不少夕阳和色彩；而今太阳从我们的视野消失，阳关便更为直接地照射到密度各异的重重云霭与层层大气的底部；一片崭新的、更加灿烂的阳光染红了西天，一幅景观色彩绚丽，变化万千，观赏者固然赏心悦目，然而自叹莫及。而我们之所以能领略如此无与伦比的美景，全应归功于—尘埃！