не только ..., но и ...
Use this pattern to connect two related facts and show that both are important. It is common in formal and neutral speech. The first part introduces one element, and the second part adds another element of equal importance. Example: «Врач обращал внимание не только на основные показатели, но и на мелкие детали.» = “The doctor paid attention not only to the main indicators, but also to the small details.” You can reuse it whenever you want to emphasize two points together, for example: «Он заботится не только о сне, но и о питании.» = “He takes care not only of sleep, but also of diet.”
Врач обращал внимание не только на основные показатели, но и на мелкие детали.
The doctor paid attention not only to the main indicators, but also to the small details.
Он заботится не только о сне, но и о питании.
He takes care not only of sleep, but also of diet.