to not express your emotions or worries
не выражать свои эмоции или заботы (ne vyyrazhat' svoi emotsii ili zaboty)
"He tends to keep things bottled up instead of talking about them."
"Он склонен держать все в себе вместо того, чтобы говорить об этом." (on sklonen **keep things bottled up** vmesto togo, chtoby govorit' ob etom)
to gradually weaken someone or something
to hide evidence of one’s actions
a person who is always busy and active
to continue believing in something or someone
to mark the beginning and end of something
to be brave enough to have big ambitions
