“passive retention”概念、定义、翻译-科学时代

单词	passive retention
释义	保险词汇手册 passive retention 消极自留
随便看	knob knob knob knob knob knobbled iron knobbled iron knobbling fire knobbling fire knobbling roll knob-cone pine knob insulator knobkerry knobs knobstick knob wiring knob wiring knobwood knock knock knockability knockabout knockabout knockabout knock-and-announce rule

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。