to disrupt or complicate something
нарушить или усложнить что-то (narushit' ili uslozhnit' chto-to)
"The sudden resignation of the minister threw a wrench into the works of the peace negotiations."
"Внезапная отставка министра throw a wrench into the works мирных переговоров." (Vnezapnaya otstavka ministra throw a wrench into the works mirnykh peregovorov.)
to end something dramatically
to do something for someone in exchange for a favor or help...
Believing something because you want it to be true, not beca...
to send someone a short message or note
to take advantage of an opportunity immediately
to think about only one thing all the time