To save the country’s plants from deer,为了从鹿口拯救国家的植物,which have doubled to 2 million since the start of this decade 这里 Which指代鹿,鹿的数目从开始时直到之后的两百万年成倍增长
an Oxford University biologist late last year called for introducing the lynx一位哈佛大学的生物学家去年呼吁引进猞猁
that died out in Britain 1,300 years ago.that指代猞猁,句意为,猞猁在1300年前就已经从英国灭绝了.