One secret military unit tried to contaminate the drinking water of the refugees...一个秘密军事分队企图污染难民的饮用水。All over the world, oil spills regularly contaminate coasts.在世界各地，油溢出物经常污染着海岸。The sources of organisms that may contam...
All over the world, oil spills regularly contaminate coasts.在世界各地，油溢出物经常污染着海岸。The sources of organisms that may contaminate the wound are numerous.可以沾染伤口的细菌来源是很多的.White cells contaminate the red cell and platelet compone...