赞一下标题，Cuba+Obama=Cubama！此次奥巴马访问古巴一行具有历史性意义，谈判成功将对两国外交、经济、政治等方面产生重要作用，对美国与拉美国家之间的关系也有重要影响。
Words
watchword
a secret word or phrase known only to a restricted group
a slogan used to rally support for a cause
gambit
A gambit is a strategic move, often in chess but also in politics or business, where a player sacrifices something up front for future gain.
rancorous
showing deep-seated resentment
The adjective rancorous comes in handy when you're describing someone's bitter grudge, like the attitude of your cousin who still won't speak to you after the April Fool's Day prank you played four years ago.
futility
uselessness as a consequence of having no practical result
When you can’t see the point in even trying, that’s the feeling of futility, the sense that no matter how much you work at it, nothing good will happen, so you might as well give up.
anachronism
something located at a time when it could not have existed or occurred
An anachronism is something that doesn't fit its time period, like if you say you'll "dial" your smartphone.
penury
a state of extreme poverty or destitution
Penury means extreme poverty to the point of homelessness and begging in the streets. Economic downturns, job loss, shopping sprees, and weekends at the high rollers' table in Vegas can lead to penury.
rapprochement
Rapprochement is the reestablishment of a happy relationship or arrangement. A peace treaty between warring nations is a kind of rapprochement.
albeit
虽然，即使
incipient
only partly in existence; imperfectly formed
Incipient means something is in an early stage of existence. In its incipient form, basketball was played with a soccer ball and peach baskets for goals. Bouncy orange balls and nets came later.
stand-down
(military) a temporary stop of offensive military action
Sentences
1、Contact between two close and related nations through commerce, tourism and the reconnection of families will only feed the desire for change.
2、Mr Obama’s diplomacy leaves a choice for the next president: turn your back on Latin America and feed its resentments and failings, or help it become America’s front yard, a region of increasingly prosperous democracies linked by economic and political ties.
feed是个妙词！
Although no region commands less attention in the foreign policy of the United States than Latin America, no region is more important to the daily lives of Americans.