1.turn up

vt. 朝上翻(出现,来到,,卷起,找到,被找到,出现,发生)

例句与用法:
He's still hoping something (eg a job or a piece of good luck) will turn up.
他仍在期待机会出现（如得到工作或好运）.
We invited her to dinner but she didn't even bother to turn up.
我们请她吃饭她都不露面.
I can't hear the radio very well; could you turn it up a bit?
收音机我听不太清楚, 你把声音开大点行吗?

2.virus

n. 病毒

例句与用法:
At some point, determined by how the virus was programmed the virus attacks.
只有在某个点上病毒程序才会发作（这是由病毒程序的设计所决定的）。
The direct cause, such as a bacterium or virus, of a communicable disease.
传染原传染性疾病的直接病因，例如某种细菌或病毒

3.waterfowl

n. 水鸟, 水禽

4.ornithologist

n. 鸟类学家

5.pathogenic avian influenza

高致病性禽流感