疏的

Brushes on mowers will do an acceptable job but are not as thorough as a heavier brushing or brooming.

剪草机刷草设备就可起到作用，但不如深刷或疏草底。

Lyme disease is a disease caused by Borrelia burgdorferi, a spirochaete, and spread by ticks of the genus Ixodes.

莱姆病是一种由伯氏疏螺旋体起疾病，由硬蜱属蜱类传播。