to put in great effort to achieve objectives
прилагать большие усилия для достижения целей (prilagát' bol'shie usiliia dlia dostizheniia tselei)
"They constantly strive toward their goals with persistence."
"Они постоянно стремятся к своим целям с упорством." (Oni postoianno **stremiatsia k** svoim tseliam s upor-stvom)
to switch from one system or platform to another
to register or enroll in a course or activity
to continue doing something despite difficulties
to make progress or succeed in a particular area
to stop operating a business or company
to cause prices or costs to increase