A donga is a rudimentary shack, dusted with red dirt but fitted out with flat-screen TVs, sophisticated communications, and creature comforts.
活动房就是个很简陋的棚屋，浮着红色的尘土，但里面有平板电视和先进的通讯设备，并且生活用品一应俱全。
2
Air conditioning in the use of a period of time, screen pack, evaporator and air supply systems will build up large dust, dirt, producing a large amount of bacteria, virus.
空调在使用一段时间后，过滤网、蒸发器和送风系统上会积聚大量灰尘、污垢，产生大量的细菌、病毒。
3
The unique filtering network can screen out dirt and bacteria from the air, appropriately create soft and delicate make-up effect as velvet.