“Underground Railway”概念、定义、翻译-科学时代

单词	Underground Railway
释义	历史学词汇手册 Underground Railway （美国）地下铁路（内战前南方奴隶逃往北方自由州或加拿大的秘密路线）
随便看	theory of relativity theory of relativity theory of relativity theory of relativity theory of rent-seeking theory of representation theory of resonance theory of revolution theory of sacrifice theory of sampling theory of self-organization theory of sense symbols theory of separation of powers theory of set of points theory of sexual stratification theory of sharing theory of signal detectability（TSD） theory of similarity theory of similarity theory of similarity theory of similarity theory of situated identities theory of social action theory of social alienation theory of social contract

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。