后面的介词用down，例如：

1. This is something that we should sit down and discuss as a team.这件事我们应当坐下来一起认真讨论一下。

2.Stop fooling around and sit down!别干傻事了，坐下来！3.Come and sit down and take the weight off your feet for a while.来坐下歇一会儿吧。

最常见的是sit down.坐下

sit是动词，后面的介词是to，