In addition an effective insecticide spray can be used to eradicate the problem.
另外一个有效的驱虫喷雾剂，可以用来消除这个问题。
Indoors, you put a white sheet on the ground, spray some insecticide on walls and ceilings, and the mosquitoes fall on your feet one by one.
在室内，你在地上放一个白床单，然后在天花板和墙上喷上一些杀虫剂，蚊子就一个一个地掉在你的脚边。
Indoors, you put a white sheet on the ground, spray some insecticide on walls and ceilings, and the mosquitoes literally drop at your feet.
在室内，你在地上放一个白床单，然后在天花板和墙上喷上一些杀虫剂，蚊子就一个一个地掉在你的脚边。
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