Their approach is to whittle away at the evidence to show reasonable doubt.

他们的做法是要削弱证据的说服力以提出合理的质疑。

柯林斯例句

Make this plug smaller for me, but do not whittle away too much wood.

帮我把这个塞子弄小一点, 但木头不要削掉太多.

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Do you constantly whittle away at a problem , trying to find a solution?

是否会坚持不懈地寻找方法逐步解决问题?

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