当我说自己能修好电脑时，他露出怀疑的表情说：“证明给我看”。

When I claimed I could fix the computer, he gave me a ___show-me expression and said, "Prove it."

他那种‘拿证据来’的态度让他从不轻信任何广告宣传。

His ___show-me attitude prevents him from believing any advertisement without proof.