I won't go until I'm good and ready.

　　我要完全準備就緒后才走。

　　By law, you are a child until you are 18.

　　按照法律規定，18歲之前是未成年人。

　　It took time until the political situation had normalized.

　　政治局勢過了很長時間才恢復正常。

　　No decision will be taken on the matter until next week.

　　到下星期才會對這一問題作出決定。

　　Things were going fine until you showed up.

　　你一露面就把事情搞糟了。