This is the 10711th most frequent Russian word.
восстанавливаться
"To recover" or "to restore oneself."
Here, the word "восстанавливаться" is used to indicate the natural process of recuperation or recovery over time.
После долгого периода отдыха организм начинает восстанавливаться.
After a long period of rest, the body begins to recover.
In this context, "восстанавливаться" refers to the act of restoration or returning something (a building) to its original state.
Мы помогаем старым зданиям восстанавливаться, чтобы сохранять их историческую ценность.
We help old buildings to be restored to preserve their historical value.
Here, "восстанавливаться" is used to describe the natural process of recovery and regeneration in an ecosystem.