(每日一词）peripatetic

Peripatetic  /ˌperipəˈtetɪk/ adj. 不固定的, 流动的；n.到处走动的人

meaning: If someone has a peripatetic life or career, they travel around a lot, living or working in places for short periods of time

1) 前缀：peri- 周围 （period 时期，周期—peri + road，表示一圈，一个循环一个周期)

2) 词根：pat- 走（path 路径)

3) 后缀：-etic 形容词后缀

e.g. Her father was in the army and the family led a peripatetic existence for most of her childhood.  她父亲是军人，全家人在她童年的大部分时间过着一种流动的生活。