snow怎么加ing?

snow怎么加ing? 英语单词怎么加ing climb怎么加ing listen 怎么加ing look+ing怎么加? eat怎么加ing join怎么加ing? dance怎么加ing? buy怎么加ing dance怎么加ing enjoy怎么加ing catch怎么加ing come+ing怎么加? watch+ing怎么加? 讨厌怎么加ing cry怎么加ing 怎么加ing smile怎么加ing?