英语翻译To save the country’s plants from deer,which have double

英语翻译
To save the country’s plants from deer,which have doubled to 2 million since the start of this decade,an Oxford University biologist late last year called for introducing the lynx(猞猁) that died out in Britain 1,300 years ago.谁能帮我分析下这句话.

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.