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The difference between dust and dust

The difference between dust and dust is that.

1, dust is a Chinese word, one refers to flying dust and the other refers to dust custom; Three refers to the bottom of society; The fourth metaphor is dirty or dirty things, and the five fingers do not decorate the dust. Dust is particles suspended in the air, which comes from industrial emissions, burning smoke and dust, soil dust and so on. Dust is the enemy of human health. It carries many bacteria, viruses and eggs everywhere, spreading diseases. Dust is also beneficial: dust makes nature have colorful natural scenery such as sunset glow, morning glow, idle clouds and rainbow halo.