to place reliance or faith in someone or something
положить доверие в кого-то или что-то (polozhit' doverie v kogo-to ili chto-to)
"He decided to put his trust in the new system."
"Он решил положить свое доверие в новую систему." (On reshil polozhit' svoe doverie v novuyu sistemy.)
to look very happy and cheerful
to continue to hope or work toward a goal even after setback...
to control your emotions and behave calmly
to feel extremely anxious or scared
to have surgery
to go out and celebrate wildly