until的语法用法初中

1.They practiced the dance until it was perfect.他们反复练舞，直到尽善尽美为止。

2.Beat the butter and sugar until soft and fluffy.搅打奶油和糖直到松软为止。

3.The party remained on the fringe of the political scene until last year.直到去年为止这个政党一直处在政治舞台的外围。