The 56-year old Branson, who was knighted by Queen Elizabeth in 1999, said he was inspired by former vice president Al Gore to make the commitment.是什么意思_The 56-year old Branson, who was knighted by Queen Elizabeth in 1999, said he was inspired by former vice president Al Gore to make the commitment.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句