单词	SI unit
释义	SI unitSI unit /es ˈaɪ ˌjuːnɪt/ noun [countable] technical a standard unit of measurement in an international system used especially by scientists. SI units include the metre, kilogram, second, ampere, and Kelvin.
随便看	observation observational observation post observation tower observatory observe observer Observer, The obsess obsession obsessional obsessive obsessive-compulsive obsessively obsidian obsolescence obsolescent obsolete obstacle obstacle course obstacle race obstetric obstetrician obstetrics obstinacy

英语词典包含52748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。