Wal-Mart has worked to improve its public image by becoming a more "green" company.

VOA: special.2009.07.17

One way of referring to this cell is in terms of its potential and the zygote obviously has the potential of becoming all of the cells of our body.

干细胞的一个特点,就是它有分化潜能,而受精卵,显然有变成我们体内任何细胞的潜能

耶鲁公开课 - 生物医学工程探索课程节选

It is not like in the past." Europe may have emerged from recession, but its effects are only now becoming clear.

VOA: standard.2010.06.24

The company opened its first multiplex theater in mid-June, becoming the latest firm to expand into movie houses.

VOA: standard.2010.07.06

"They were willing to risk their lives, in this case, to prevent Afghanistan from once again becoming a safe haven for al-Qaida and its extremist allies.

VOA: standard.2009.10.26

Analysts say nationalistic tensions remain high as Macedonia has been struggling to find its own identity since becoming an independent nation in 1991, following the break up of Yugoslavia.

VOA: standard.2009.03.22

The report's release comes at a sensitive time. The Obama administration is debating whether to deepen its commitment to the war in Afghanistan, which is becoming increasingly unpopular in the United States.

VOA: standard.2009.09.11

Law Professor Yusri Mohammad, with the International University in Malaysia, says the Muslim community is not becoming more conservative, but it is trying to hold on to its values and way of life.

VOA: standard.2010.02.24