sit down反义短语是stand up站起来。sit down中文意思是v，坐下扎营

Sit down—you're blocking my view.坐下，你挡住我的视线了。

He indicated a chair. "Sit down."他指着一把椅子说，“坐下。”

Shove up! Jan wants to sit down.挪一挪！简要坐下来。

Can we sit down? I'm worn out.