| 释义 |
blackbear r.
- blackberryn. 黑莓
- blackboardn. 黑板
- blackbirder黑奴船
- blackbirdn. 黑唱鸫,黑鹂，乌鸦
- blackballn. 反对票 v. 投票反对,排斥
- 读、写、算dú _ xiě _ suàn
the three R's
- 每分钟转数měi fèn zhōng zhuǎn shù
revolutions per minute (r/m)
- 阴极射线管yīn jí shè xiàn guǎn
cathode-ray tube (CRT); cathode-ray lamp; C-R tube
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