一……就……的英语是as soon as,具体释义如下:
读音:/ æz suːn æz /
固定搭配:as soon as possilbe尽可能早一些;As Soon As Mature尽快成熟起来;As soon as payment请尽快付款;as soon as seeing一见之下 ; 立即。

例句:
1、We'll get back to you as soon as possible.
我们将尽快再跟你联系。
2、I unpacked my bags as soon as I arrived.
我一到达就打开行李,整理衣物。
3、We'll give him a ring as soon as we get back.
我们一回来就会给他电话。