词汇 | paraffin |
词根词缀 | 词源: 1838, from Ger. Paraffin, coined c.1830 by Ger. chemist Karl von Reichenbach (1788-1869) from L. parum "not very, too little" + affinis "associated with." So called because paraffin is chemically not closely related to other substances. |
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