soon

sooner or later

用;表示某事的发生只是个时间问题。也说It's only a matter of time.
意：迟早;早晚;最终;到头来
例，Everyone tells everything to me sooner or later.
不管发生什么事，迟早会有人告诉我。
She'll come back sooner or later, I suppose.
我想，最终她会回来的。
You'll regret what you are going to do snoner or later.
那样做到头来你会后悔的。

the sooner the better

用：希望某事能尽早完成的用语。
意：越快越好;愈早愈好
例.Our manager's going tv announce his retirement---and the sooner the better,as far as I' m concerned.
我们经理要宣布退休了，叶我来说他越早退下去越好。
A: When shall I break it to her?
我什么时候告诉她呢?
B: The sooner the better!
愈早愈好!