The meeting is postponed until next week ,( )we will not be

until可用作介词或连词,意为“到……时候为止”、“到……时候才”或“在……时候以前不”.
1.如果主句中的谓语动词是终止性动词,应采用“...not ...until ...”结构,意为“……到……时候才……”.例如：
You mustn’t eat anything until you see the doctor.看过医生之后,你才能吃东西.
2.如果主句中的谓语动词是延续性动词,那么谓语动词用肯定式或否定式,它们所表达的意思有所不同.
1） 如果谓语动词为肯定式,则until译为“到……时候为止”.例如：
I watched TV until she came back.我看电视一直看到她回来.
2） 如果谓语动词为否定式,则until应译为“到……时候才”,即“在……以前不”.如：
I did not watch TV until she came back.（= I began to watch TV when/after she came back.） 直到她回来我才开始看电视.
3.用终止性动词作谓语时,until既可以和not连用,又可以和never,nobody,nothing,few,little,seldom,hardly等含否定意义的词连用.例如：
I had not seen him until 1990.（= I had never seen him until 1990.） 1990年以前我从未见过他.
Don’t put off until tomorrow what you can do today.（= Never put off what you can do today till tomorrow.） 今日事,今日毕.