Darwin: chickens, over great periods of time, have been naturally selected in such a way that they are now genetically dipositioned to cross road.是什么意思_Darwin: chickens, over great periods of time, have been naturally selected in such a way that they are now genetically dipositioned to cross road.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句