| 词汇 | crystal set |
| 释义 | crystal setBrE /ˈkrɪstl set/ NAmE /ˈkrɪstl set/ (also ˌcrystal ˈradio ) noun a simple early radio which was listened to wearing headphones(早期用耳机的)晶体检波收音机,矿石收音机 |
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