3. This virus has killed birds in about forty countries. It is highly deadly to chickens, turkeys and other poultry. But birds are not the only ones at risk. 这种病毒已经在大约四十个国家杀死了鸟类。它在鸡，火鸡及其它家禽中的死亡率极高。但不仅仅是鸟类有这种危险。
英英解释
adj.
1. causing or capable of causing death
2. of an instrument of certain death
3. extremely poisonous or injurious; producing venom
4. involving loss of divine grace or spiritual death
5. exceedingly harmful
6. (of a disease) having a rapid course and violent effect adv.
1. as if dead
2. as if produced by death
3. (used as intensives) extremely
