他闲暇时经常作报告宣传科学的翻译：In his spare time to perform regular reporting information science 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

His spare time to report regularly to disseminate scientific

In his spare time to perform regular reporting information science

When his leisure gives a speech frequently the propaganda science

His leisure-time when regular reports for dissemination of scientific

In his spare time to perform regular reporting information science