| 单词 | unheard-of |
| 释义 | unheard-of /un herrd"uv', -ov', -euhv/, adj. 1. that was never heard of; unknown: an unheard-of artist. 2. such as was never known before; unprecedented: an unheard-of salary. 3. shocking or outrageous: unheard-of conduct. [1585-95] |
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