settle in释义：

v. 迁入

例句：

He took a long time to settle in to big-time football.

他花了很长时间才在靠前流的足球运动中立足。

视频：

场景会话

settle down释义：

定居；安定下来；专心于

例句：

When are you going to get married and settle down?

你打算什么时候成家，安定下来？

视频：

场景会话。