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| 单词 | black box |
| 释义 | black box n. 1. See event recorder. 2. A usually large, square room with black walls used as a space for theatrical performances. 3. a. A device or theoretical construct with known or specified performance characteristics but unknown or unspecified constituents and means of operation. b. Something that is mysterious, especially as to function. black-box′ adj. |
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