It's working its way slowly across the U.S. and wiping out populations of bats, and scientists have estimated that 1,300 metric tons of insects a year are now remaining in the ecosystems due to the loss of bats.
这种疾病正在美国缓慢蔓延并消灭蝙蝠的数量。 科学家已预计 现在每年有1300公吨的昆虫 因为蝙蝠的减少而留在生态系统里。