It took me a few weeks to settle in after moving to the city.

settle 的意思是"安顿、安定"，指在一个新地方开始稳定的生活。 in 在这里是副词，表示"进入某种状态"。 settle in 是一个短语动词，意思是"适应新环境、安顿下来"，特指搬到新地方后逐渐适应和熟悉的过程。