英语浸入式校本实验教材科学与社会第二册词汇表

period dynasty surpass surpassing Suez Canal panama canal canal poster scarce ration pumping station pump station underground stem conserve drain limited resistant sterilization microorganism organism dissolve pure acid plant sterilize coastal spot microscope substance impurity strainer water pipe undergo tap water special clarifier bacteria fluoride chlorine reservoir suffer vomit dirt contain industrial production production fish culture culture irrigation purify boil pollute transportation boiled water boiled germ sedimentation seemingly impure filtration chemical user catchment area catchment filtrate filter paper filter funnel residue particle treat stream supply treatment