| 单词 | femto- |
| 释义 | femto- a combining form used in the names of units of measurement which are 10-15 (one quadrillionth) smaller than the unit denoted by the base word. [ < Dan, Norw femt(en) fifteen + -O-] |
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英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。