The rain now becomes a torrent, flung capriciously by a rising wind.
雨现在变成了一股洪流,被上升风反复无常地甩着。
Man, though acting on external characters alone and often capriciously, can produce within a short period a great result by adding up mere individual differences in his domestic productions; and every one admits that species present individual differences.
人虽然只根据外在特征行事, 而且常常反复无常,但通过在其国内生产中增加单纯个体差异, 可以在短时间内产生巨大结果;每个人都承认物种存在个体差异。