3句英文任你选

Welcome, please sit down.
欢迎光临，请人席。

Now , let's be seated.
现在请人座。

Take your seat, please.
请坐。

半个句型要记牢

be seated (入座)

Tip: seat作动词时是一个及物动词 (vt.) ，后面一定要跟宾语(即使是跟反身代词)。
表示"使就座;向 ……提供座位;落座"如:She seated herself on the table. = She was seated on the table. = She sat on the table. (她坐在桌子旁。)，另外 seat还可作名词，表示"座位常用短语有: take/have a seat =sit down (人座，坐下)。