复数： eighties

Eighty per cent of gallstones are cholesterol-related .

百分之八十的的胆结石都与胆固醇有关。

Eighty percent of your effectiveness comes from 20 percent of your activities .

百分之八十你的效益来自20的工作。

Moses was eighty years old and aaron eighty-three when they spoke to pharaoh .

摩西、亚伦与法老说话的时候，摩西八十岁，亚伦八十三岁。

Eighty percent of the girls said their fathers did not live with them .

百分之八十的女孩声称她们的父亲没有与她们住在一起。

Eighty per cent of the world will have gay marriage ( paul )

同性婚姻将占世界婚姻的百分之八十（paul）