BBC News | Science And Environment 中文 关注 在牛结核病让他的田野沉寂之后,这位农夫转而歌唱。 养牛农梅文·凯尔索因牛结核病导致整群牛只死亡,面对空荡的田野,他倍感悲伤。 The farmer who turned to singing after bovine TB silenced his fields bbc.co.uk BBC News | Science And Environment 中文 RSS thenote.app