Andrea Goldsmith: You can break up the frequency spectrum in some way whether it 's time or frequency or codes so that assign it to users so they don't interfere with each other.

安德里亚·戈德史密斯：人们可以采取某种方式来划分频谱，不管是通过时间、频率或者编码加以划分，然后将频段分配给用户，使他们之间的通话不受干扰。

youdao

Andrea Liddell says she and her husband exchange cards for Valentine's Day.

VOA: special.2010.02.08

Laura D'Andrea Tyson is on the president's Economic Recovery Advisory Board.

VOA: special.2009.07.10

"When you see people care about your child's life, it's been tremendous for the family and for Andrea."

VOA: standard.2010.06.30

It was a day where the seeds fell at Birmingham, number six seed Mona Berthel of Germany losing to Czech Republic's Andrea Hlavackova and USA's number seven seed Christina McHale losing 6-1, 1-6, 7-5 to Elena Vesnina of Russia.

CNN: Top seed Murray crashes out at Queen's

As NPR's Andrea Hsu reports, that's something the VA is trying to prepare for.

NPR: Government to Fund Beds for Homeless Veterans

Andrea's high school principal, Carol Conklin-Spillane, said the girls' home community in Westchester, New York, was heartbroken.

CNN: Hofstra student killed in home invasion