The rising power of a militant group called al-Shabab in neighboring Somalia has also added a new security challenge in the region.

VOA: standard.2009.05.01

Now, being phosphorylated means that a phosphate group has been added to the protein, and phosphate groups can only be added to certain amino acids along a protein.

磷酸化的意思是,蛋白上连接了一个磷酸基团,这个磷酸基团只能连在,蛋白中某些特定的氨基酸上

耶鲁公开课 - 生物医学工程探索课程节选

"The highest consuming group consumed an average of 46 teaspoons of sugar of added sugars.

VOA: standard.2010.04.25

He added that he rejected linking terrorism to any ethnic group or religion, again a point debated by Muslim Uighurs who have been rounded up in anti-terror sweeps.

VOA: standard.2009.11.07

Allen Hershkowitz with the Natural Resources Defense Council, a private environmental group, says air quality around landfill sites must be carefully checked when oil-contaminated waste is added to normal household trash.

VOA: standard.2010.08.05