这些小狗特别活泼，整天在院子里蹦蹦跳跳。

The puppies were feeling skittish, bouncing around the yard all day.

skittish 是形容词，由名词 skit（"短剧、滑稽短剧"）加后缀 -ish 构成，原指"像滑稽剧一样活泼好动的"，现在多用来形容动物或人"活泼好动、容易兴奋"的状态。