Conceito
"The concept of time travel has fascinated scientists and writers for decades."
Explicação
"The teacher gave a clear explanation of the complex topic, making it easier for the students to understand."
Detalhe
"She explained the project in great detail, ensuring everyone understood their roles."
Tópico
"The main topic of the discussion was climate change and its impact on future generations."
Língua
"Learning a new language can open up many opportunities for communication and understanding."