“social security”概念、定义、翻译-科学时代

单词	social security
释义	商务词汇手册 social security 社会保障
随便看	Winfrey, Oprah wing wing wing wing wing wing wing wing wing wing-and-border stage wing-and-drop setting wing area wing area wing band wing bollard wing brackets wing breast wing chord wing chord wing covert wing curve wing dam wing door wing drag

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。