For many years after Mister Harrison's work was completed, the idea of using a clock to learn longitude was rejected.

VOA: special.2010.07.14

He taught many other musicians. And,he appeared on television programs and wrote books to help people especially children -- learn about music.

VOA: special.2009.08.02

And,many women who are pregnant take tests to learn about the condition of the fetus.

VOA: special.2010.03.23

Because there are many of these cases, people should still learn CPR with mouth-to-mouth.

VOA: special.2009.06.09

Helen was able to learn many things, not just languages.

VOA: special.2009.11.08

The castaways,who came from many parts of the world, had to learn to live with each other, and their pasts.

VOA: standard.2010.05.25