to invest time or money into something
вкладывать время или деньги в что-то (vkladyvat' vremya ili den'gi v chto-to)
"She put in a lot of money to start her business."
"Она вложила много денег, чтобы начать свой бизнес." (Ona vlozhila mnogo deneg, chtoby nachat' svoy biznes.)
to remain strong in one's beliefs or decisions
to improve your professional skills or position
to return someone's call or reply later
to feel concern or affection for someone or something
to increase strength or endurance gradually
to maintain positivity and confidence during difficulties
