40~90这些数字的英文答:forty ,forty-one ,forty-two, forty-three, forty-four, forty-five, forty-six, forty-seven, forty-eight, forty-nine.fifty, fifty-one ,fifty-two,fifty-three,fifty-four,fifty-five,fifty-six,fifty-seven,fifty-eight,fifty-nine.sixty, sixty-one, sixty-two,sixty-three,sixty-four, ...