to fall behind others in progress or development
отставать от других в прогрессе или развитии (otstavat ot drugikh v prohresse ili razvitii)
"She started to drop behind in her studies after missing several classes."
"Она начала отставать в учебе после того, как пропустила несколько уроков." (Ona nachala otstavat v uchebe posle togo, kak propustila neskol'ko urokov)
to make people understand your idea or emotion
to officially launch or implement new changes or improvement...
to have formal discussions or negotiations with someone
to become so excited that you lose control of your feelings...
to plan or calculate something in detail before action
to discuss a problem thoroughly to reach understanding
