历年雅思高频词汇精选
bacteria
n. （plural of bacterium）a type of very small organism that lives in air. earth, water, plants and animals, often one which causes a disease细菌
Bacteria grow best in hot, damp conditions, and are often to be found in most domestic bathrooms and kitchens. 细菌适宜在湿热的条件下生长，在大多数的家庭厨房和浴室里都能发现它们。
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