"I have difficulty dancing" 是表达 "我跳舞有困难" 的一种方式。其中，"difficulty" 是一个名词，意思是 "困难"，"dancing" 是一个动名词，意思是 "跳舞"。这个短语的来源可能源于人们在讨论自己的能力时常用的语言模式。
下面是一些例句和其中文翻译，以便您更好地理解这个短语的用法：
I have difficulty dancing, so I usually avoid going to parties. 我跳舞有困难，所以我通常避免去参加聚会。
My sister has difficulty dancing, but she still loves to go out and have fun. 我姐姐跳舞有困难，但她仍喜欢出去玩。
Despite his difficulty dancing, John still managed to impress everyone at the wedding with his moves. 尽管约翰跳舞有困难，但他仍然设法在婚礼上用他的动作让所有人印象深刻。