The device tests material collected from a quick warb (swab) of a person's throat. 这种装置测试的物质是从人的喉咙处用棉签快速采集的。
The child of this period loves dauby crow, can change wall brush the emulsioni paint that swabs to be able to bear or endure, make them free in the room behave originality. 这个时期的孩子爱乱涂鸦,可以把墙壁改刷为耐擦洗的乳胶漆,让他们在房间里自由表现创意。