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 stop paying attention
to reach a stage of maturity or full potential
To try something despite uncertainty.
to be remembered for something important or significant
Work becomes easier when many people help.
to be the first to criticize or condemn someone