Lodge said the great nations of the world were taking control of the world's undeveloped areas.

VOA: special.2010.07.08

Their memory improved significantly, so their intelligence level as taking by tests before and after compared to control group improved significantly after a single week.

他们的记忆力有明显改善，他们的智力水平,在实验前后进行测试，再与对照组相比,在仅仅一周后就有明显改进。

哈佛公开课 - 幸福课课程节选

Mr.Obama is considering whether to send more troops to Afghanistan to prevent the Taliban from again taking control of the country or to use special forces and unmanned spy planes to target al-Qaida in Pakistan.

VOA: standard.2009.09.29