单词	paper trail
释义	paper trailˈpaper trail noun [countable usually singular] documents and records that show what someone has done, especially ones proving that someone is guilty of a crime:  The paper trail led investigators straight to the White House.
随便看	implementation implicate implication implicit implicitly implode implore imploring implosion imply impolite impolitely impolitic imponderable import importance Importance of Being Earnest, The important importantly importation imported importer importunate importune importunity

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