因為空氣汙染日漸嚴重，過敏的人也越來越多，想設計可以外出用的空氣清淨機

因為空氣汙染日漸嚴重，過敏的人也越來越多，想設計可以外出用的空氣清淨機。

結果 (英文) 1:

Because air pollution is becoming more and more serious, and more and more people are allergic, I want to design an air purifier that can be used outside.

結果 (英文) 2:

Because of the increasingly serious air pollution, more and more people with allergies want to design air purifiers that can be used outside.

結果 (英文) 3:

Because the air pollution is getting worse and worse, more and more people are allergic, and they want to design an air cleaner that can be used outside.