1. After being expelled from his hometown, he lived a rootless life, constantly moving from place to place.
被赶出家乡后，他过着漂泊的生活，不断地在各地流浪。

2. Growing up in foster care, she felt rootless and struggled to find a sense of belonging.
在寄养家庭中长大，她感到无依无靠，努力寻找归属感。

3. The immigrant faced the challenge of adapting to a new culture and building a life in a rootless environment.
这位移民面临着适应新文化和在无根的环境中建立生活的挑战。