除了说声Good luck，你还能怎么祝人家好运？
Teenager wins top prize for pancreatic cancer test
Words and their stories: Belittle
New technology used to track US flu outbreak(视频)
Epilepsy disorder suffered by millions around the world
How babies learn, when, and even in what position
Words and their stories: Losing it
Benedict departure will leave little room for change
Soaring population, climate change stress resources
Abduction prompts girl to fight back for all women
Washington insider Susan Rice could face tough nomination battle
Tattoos illustrate art of saving lives
New rules aim to improve US food safety
WHO warns of malaria resurgence
Now on the iPad: Apps for orangutans
Inaugural festivities put the 'party' into political parties
Words and their stories: Santa Claus
Getting a firm grip on weed control
A new way to shop: The fashion truck
Words and their stories: state nicknames, part 3
US president attends inaugural prayer service
Ocean floor reveals past climate changes
40 years Later, US abortion opinions remain passionate
What online teens consider 'research'
Discover America with American Mosaic!
Televisions stole the spotlight at the consumer electronics show
Britain could be on oath to EU exit(视频)
Student launches hospital for iPhones
30,000 Sandy-damaged cars stored on eastern Long Island
Five actresses compete for coveted Oscar