Spokeswoman Jen Psaki says the U. S. has concerns about the unclear nature of the AIIB proposal as it currently stands.

女发言人珍·莎琪（Jen Psaki）表示，美国对目前方案中亚投行性质的不确定有所关注。

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And, as Jen pointed out, it's certainly something we anticipate that voters across the country who rely on Medicare on a daily basis will carefully consider.

WHITEHOUSE: The White House

"People tend to continue exercise if they feel it's approved by other people who are meaningful to them, " said sports psychologist Jen Gapin.

CNN: Fitness tools that tap the power of your friends

"When you do something like that over and over every day, it changes your whole psyche, " said one of Thankfulfor.com's founders, Jen Consalvo, 37, who has kept her own gratitude journal for several years.

CNN: The power of gratitude, a year-round gift