细菌: germ; bacterium (pl. bacteria); fungus (pl. fungi) 短语和例子细菌的传播 the spread of bacteria; 细菌肥料 bacterial fertilizer; 细菌分类 division bacteria; 细菌农药 bacterial pesticide; 细菌武器 bacteriological [ger
叠: Ⅰ动词1.(一层加上一层; 重复) pile up; repeat 短语和例子层峦叠嶂 peaks rising one higher than another; 一个一个往上叠 pile one above another2.(折叠) fold 短语和例子把信叠好 fold the letter; 叠被子 fold up a quilt; 这些轻便折椅可以叠起来放进汽车。