那请问 close down their positions

那请问 close down their positions Their shop had to close down for good. close down 倒闭是close down 还是close off? close 和 close down的区别 keep down close the floor down on their table close down,close up和close out 都有关闭的意思,如何区分?此外close 请问“George and john sat down with their coats on”如何翻译 急. PUSH DOWN&TURN CLOSE TIGHTLY TO OPERN turn off与close down的区别 break up 与close down的区别