излагам подробно означава в английски

detail [detailed, detailing, details]▼(to explain in detail)
verb
[UK: ˈdiː.teɪl] [US: də.ˈteɪl]

expand [expanded, expanding, expands]▼((transitive) to express at length or in detail)
verb
[UK: ɪk.ˈspænd] [US: ɪk.ˈspænd]