因为空气中的灰尘或水汽反射电筒的光，我们才看得见电筒的光束。
We see the beam from the flashlight because the light is reflected by particles of dust or moisture in the air.
雪是由小冰粒围绕空气中的灰尘凝结而成的，雪晶有六个边，但他们有不同形状。
Snow crystals are ice particles that usually form around a piece of dust in the atmosphere. All snow crystals have six sides, but they form different shapes.
独特的过滤网可以过滤空气中的灰尘、细菌，适中洁净展现天鹅绒般的柔嫩妆效。
The unique filtering network can screen out dirt and bacteria from the air, appropriately create soft and delicate make-up effect as velvet.
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