“safety first”概念、定义、翻译-科学时代

单词	safety first
释义	旅游词汇手册 safety first 安全第一
随便看	public bill public bill public bond public bond public bond public broadcasting Public Broadcasting Service（PBS） public broadcasting system public building public business public capital public capital market public carrier public carrier public carrier public catalogue public charge public cheque public choice public choice public choice public choice economics public choice theory public choice theory public choice theory

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。