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| 原 Life Science Dictionary (Shuji Kaneko) | |||
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| 原始のー Geological Terms Dictionary (Bruce Bain and Leslie Oberman) | |||
| English thesaurus | |||
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| Private Rocket To Orbit Tiny Objects | |||
| prototype | |||
| prototype | |||
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| prototype | |||
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proto : 7 phrases in 2 subjects |
| General | 6 |
| Technology | 1 |