“松散”用英语怎么说？

两个小伙子正在松散的砾石路面上赛摩托车。Two young men were racing motorcycles on the loose gravel.和多数研讨会一样，这些研讨会也比较松散随意。As seminars go, these are loose, unstructured affairs.我儿时的回忆是一些朦朦胧胧的松散片段。My memories of childhood are hazy and episodic....

“松散”的拼音为：sōng sǎn...