九年级英语(上)第二单元重点必背Unit 2 Loving Our Planet Topic 1 Pollution causes too many problems.
一单词bee, several, chemical---chemistry, waste, stream, soil, breathe----breath, influence, weak, create, produce---production, gas, chest, anyway, coal, electric----electricity, deaf, print, disturb, harm---harmful, nearby, effect, industry, rubbish, destroy, blood, pressure