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cuaternario; que contiene cuatro elementos |
fjerde : 30 phrases in 10 subjects |
Communications | 1 |
Economics | 4 |
Finances | 7 |
General | 8 |
Information technology | 2 |
Metallurgy | 1 |
Research and development | 1 |
Social science | 2 |
Technology | 2 |
Transport | 2 |