The noun 'breakthrough' refers to a sudden, dramatic, and important discovery or event.
名词 'breakthrough' 指突破或突破性进展。
| 单词 | breakthrough |
|---|---|
| 发音 | ['breɪkθruː] |
| 释义 | n. 突破；突破性进展 |
| 词序 | 5379 |
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