He had just become the first person to fly a plane alone across the Atlantic Ocean, from New York to Paris.

VOA: special.2009.06.28

You can see in the New World with maize being important how America has become a corn dominated society, even though it's still true that we raise wheat, we raise other things in the United States, and we can import different foods, corn has become an incredibly important constituent of the diet in the U.S.

你能发现玉米在美洲大陆的重要性,那美洲是怎样变成主食玉米的社会的呢,尽管我们仍然种植小麦,在美国也种植其他粮食,而且我们能进口各种不同食物,但是玉米还是变成了,美国人食谱中不可代替的部分

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If he supported Tyler, then the new president might become too strong politically and win a 2nd term in the White House.

VOA: special.2009.01.29

Each group has a set of traditions about how new people become official members.

VOA: special.2009.09.25

His new album,"Doo-Wops & Hooligans" has become a huge success.

VOA: special.2010.10.29

"Oh,usually to lead a healthier lifestyle by eating better food and not drinking so much,so (Laughs)" Jamar Negron,a high school student from New Jersey, has a few resolutions for two thousand ten: "I'm a fencer, so my New Year's resolution is just to become better at fencing.

VOA: special.2009.12.28

"She's become unstable." "This is the disaster everyone warns about: a new species set loose in the world."

VOA: standard.2010.06.09

Scientists say it's getting wider every year and the area could eventually become a new ocean.

VOA: standard.2009.12.14

If they are right about that new crack in the earth, this landlocked country could become a beach resort within, say,a few hundred thousand years.

VOA: standard.2009.12.14

The report also shows that it has become increasingly difficult to find new jobs, a conclusion that worries Congresswoman Carolyn Maloney, a New York Democrat and chairwoman of the committee.

VOA: standard.2009.04.03

"Therefore you need a new start, where the same ideas that are valid become part of the American foreign policy but somehow delinked (from) that whole invasion and occupation, so the new administration has the opportunity to do that in a way that democracy is incorporated into U.S.Middle East policy."

VOA: standard.2010.05.19