“mother tongue”的概念、定义、翻译、参考文献-科学参考

单词	mother tongue
释义	mother tongue Encyclopedia 文学母语释 mother tongue母语所指有二。其一在历史语言学中用来指称亲属语言的原始语，又称原始母语，如藏缅语族原始母语、彝语支原始母语等。为了避免混淆，“母语”的这一术语现在一般不再使用，而改称为祖语、始源语、原始共同语等。其二指人在幼年时自然习得的，为自己和所在族群所认同的语言，与外语相对。
随便看	flight operation control flight path angle of aircraft flight performance flight performance management flight performance of aircraft flight performance reserve flight plan of aerial photography Flight process flight profile flight recorder flight schedule flight separation flight sequence flight service flight service station flight show flight simulation flight simulation lab for flight test flight simulator flight site of military airfield flight speed of aircraf flight standards management flight test flight test and evaluation for ground simulator flight test big data

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。