- a convincing demonstration of some principle or ideal
| 单词 | object lesson |
| 释义 | WordReference Random House Learner's Dictionary of American English © 2024 ˈob•ject ˌles•son, n. [countable] WordReference Random House Unabridged Dictionary of American English © 2024
ob′ject les′son,
Collins Concise English Dictionary © HarperCollins Publishers:: object lesson n
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