Obama Begins Historic Visit to Cuba

turn a page on – expression to restart a relationship

chapter – n. a period of time that is very different from the period of time before it

engage – v. to become involved with (someone or something)

isolate – v. to put or keep (someone or something) in a place or situation that is separate from others

spur – v. to cause (something) to happen or to happen more quickly

pursue – v. to try to get or do (something) over a period of time

arbitrary – adj. done without concern for what is fair or right

harass – v. to annoy or bother (someone) in a constant or repeated way

intimidate – v. to make (someone) afraid

fundamental – adj. forming or relating to the most important part of something

regime – n. a form of government (usually negative)

safe harbor – expression a place of safety and comfort