| 词汇 | milestone |
| 词源 | milestone; milepost. Milestone refers to a surveyor’s mark (often a concrete post) set to mark distances by miles, each milestone marking a mile. The Americanism dates back to about 1740 and has also come to mean a notable point in the life of a person, a nation, etc. Milepost is used in the same ways, but refers to a post made of wood. |
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