| 词汇 | gumshoe |
| 词源 | gumshoe. Gumshoe refers to a private investigator or private eye, this expression dating back to the early 20th century. The American-English term can also mean a police detective or plainclothes officer and derives from “gumshoes,” rubber-soled shoes or sneakers, which one can walk stealthily on. See plimsolls. |
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