一查到底
Investigate to the end
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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》
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
Finding a fish in kitchen was lost, the host swore to find out the thief who stole the fish.
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