我必须把此事一查到底。

I have to get to the bottom of this.

《柯林斯英汉双解大词典》

我们还在调查到底发生了什么事。

We are still investigating what actually happened," said Rodriguez.

youdao

厨房里少了一条鱼，主人发誓要一查到底，揪出偷鱼的贼。

Finding a fish in kitchen was lost, the host swore find out the thief who stole the fish.

youdao

He also mentioned a poemby Rudyard Kipling called If. I didn't recognize what he was referring to immediately but I looked it up and it's a famous poem that you must have seen written in 1910 an inspirational poem.

他同时也提到了拉迪亚德？吉卜林的一首诗歌,名字叫做《如果》，我当时并没有迅速反应出,他到底指的是哪首诗，但是之后我查了一下发现,它是一首你肯定见过的著名的诗歌,写于1910年，一首启发性的诗。

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