| 单词 | chalk talk |
| 释义 | chalk talk in British Englishnoun US and Canadian an informal lecture with pertinent points, explanatory diagrams, etc, shown on a blackboard chalk talk in American English US a lecture accompanied with diagrams, illustrations, etc. drawn in chalk on a blackboard chalk talk in American Englishnoun a talk or lecture in which the speaker illustrates points by drawing on a blackboard The coach gave a chalk talk before the big game Word origin [1830–40, Amer.]This word is first recorded in the period 1830–40. Other words that entered Englishat around the same time include: ante, baby talk, grid, orientation, showcase |
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