bái bí zi 指鼻子上涂抹白粉的京剧脸谱﹐属丑角。借喻狡诈的性格。 戏曲中丑角鼻梁上多抹有白色，借以指狡诈的人，也指汉奸或叛徒。也叫白鼻头。
一旦白鼻子病毒感染了洞穴里的一只蝙蝠，整个蝙蝠群--有时上万只-都会死掉。
Once WNS hits a cave, its entire bat population - sometimes tens of thousands of bats - can die.
但蝙蝠却受到白鼻子综合症(一种真菌性的疾病)以及与风力涡轮机碰撞的致命威胁。
But bats are threatened by white-nose syndrome, a fungal disease that kills them, as well as by deadly collisions with wind turbines.
这个神秘的杀手在美国被称做白鼻子综合症，四年前首先在纽约州的一个山洞中被发现。
The mysterious killer has been dubbed White Nose Syndrome (WNS) in America, where it was first discovered in a cave in New York State four years ago.
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