Unfortunately,the sky got cloudy around noon,and by two o'clock the （rain） was coming down hard.
问题描述：
Unfortunately,the sky got cloudy around noon,and by two o'clock the （rain） was coming down hard.
为什么添rain
答
因为前面说了 天空乌云密布,按正常的逻辑推理可以得出是要下雨了