单词	femtosecond
释义	fem·to·sec·ond (fĕmtə-sĕk′ənd) n. One quadrillionth (10-15) of a second.
随便看	salt dome salter saltern salt gland saltgrass salt grass salt hay Saltillo saltily saltine saltiness saltire saltish Salt Lake City salt lick salt marsh salt-marsh caterpillar salto salt of the earth Salton Sea salt out salt pan saltpeter salt pork Salt River

英语词典包含135693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。