“Forty-Niner”概念、定义、翻译-科学时代

单词	Forty-Niner
释义	历史学词汇手册 Forty-Niner 四九佬（指1849年去加利福尼亚淘金的人）
随便看	rail car rail carriage rail carrier rail carrier railex rail freight rail fuel recovery charge rail guide rail gun rail haulage railhead railhead railing raillery rail mileage rail-mounted crane rail-mounted gantry crane rail-mounted transtainer rail rapid transit rail rapid transit rail rapid transit--rail rapid transit (RRT) rail rapid transit (RRT) railroad railroad advice railroad bill of lading

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。