The United States has recently changed its Burma policy from isolating the military government to direct engagement in hopes that it will improve its human rights and allow for democracy.

VOA: standard.2009.11.08

But the idea is to try to present to you what's exciting about Biomedical Engineering, the ways that one can take science and mathematics and apply that to improve human health.

这门课力图向你们展示,生物医学工程那激动人心之处,它融合了自然科学和数学,并用其成果提高人类健康水平

耶鲁公开课 - 生物医学工程探索课程节选

and improve the quality of human life to the extent possible without using animal testing.

以及提高人类的生活质量。

需要动物实验吗？ - SpeakingMax英语口语达人