My instinctive reaction was to deny everything.

我的本能反应是否认一切。

《牛津词典》

It's an instinctive reaction – if a child falls you pick it up.

这是一种本能的反应–如果小孩摔倒了你会扶他起来。

《柯林斯英汉双解大词典》

I think it was an instinctive reaction.

我认为它是一本能反作用。

youdao

You then list the evidence that supports your instinctive reaction and the evidence that undermines it.

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And after seeing the television pictures most people were sympathetic to the man's instinctive reaction.

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His instant, instinctive reaction was that such a prize would be good for science.

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