The phrase "afterwards explained" is correct and usable in written English.
It can be used when referring to something that was clarified or elaborated on after a previous statement or event.
Example: "The teacher provided an overview of the topic and afterwards explained the key concepts in detail."
Alternatives: "subsequently clarified" or "later elaborated on".
Afterwards explained the Dirac's six-cone formalism.
The lecturer afterwards explained that the group dynamics in cohort 2 required her to limit student participation in order to progress towards the answers.
The connection between the hill and Janus was doubtless due to the presence here of a cult of the god, who was afterwards explained as an early king of the district (cf. WR 103 ff.).
Choudary afterwards explained its purpose: "What we did is we posted a notice to the shop owners saying that under Sharia and under the Koran the sale of alcohol is prohibited and if one were to also drink alcohol, that would be 40 lashes.
The following official report, written shortly afterwards, explains what happened.
Here, she sings a song in Arabic and afterwards explains: "Iraqi songs are sad and full of grief.
"This is not necessarily the end," said one Labour adviser immediately afterwards, explaining that peers had already discussed whether to send the relevant legislation back to the House of Commons in the event of a tight vote.
"It is an offence to have anal sex in Malaysia [let alone sex with robots]." "I think they thought people would be having sex with robots or some strange thing like that," Levy's co-founder Adrian David Cheok said afterwards, explaining that they had planned a series of academic talks about humanoid robotics.
We wanted to tell this story, and we were curious about the data that would come in afterwards," explains Pereyra.
"It's difficult because we don't know what happened to lots of these women afterwards," explains Chapman.
Murin afterwards explains to the police that both Katerina and Ordynov are weak and would hand back freedom if it were given; that she needs the control of a master, and he couldn't kill a stronger man even with the means to do so.
