梗是falling,其构词法是梗falling +合成词down,中文意思是跌倒坠落跌落
Peter only just came in time to prevent the goat from falling down over the very edge.彼得刚好及时赶到,防止山羊从悬崖边上掉下去。
To be seen crying sadly, the little boy raised his head and had the tears falling down on purpose.