- bring someone down
Transitive
Meaning: make unhappy / to cause to fail (transitive, separable)
Example: Sometimes watching the news can bring me down. - cheer up
Transitive, Intransitive, Separable
Meaning: become happier
Example: She cheered up when her friend surprised her with ice cream. Her friend cheered her up with ice cream.
If something is bringing you down, here’s something to cheer you up: http://www.buzzfeed.com/mjs538/moments-that-restored-our-faith-in-humanity-this-y