And for one year in the U.S. alone, it's estimated that it's going to cost 22 billion U.S. dollars, if we remove bats. So indeed, bats then do bring us wealth.
如果我们消灭蝙蝠，据计算光在美国一年， 就将要花费220亿美元。 所以蝙蝠确实带给我们财富。