1·Nowadays, scientists are working on improving health care robots.
如今，科学家们正致力于改进医疗机器人。
2·Family Health International has been working on public health issues since 1971.
国际家庭健康组织自1971年以来一直致力于公共健康问题。
3·The scientists are still working on inventing new methods of reaching outer space.
科学家们仍致力于发明到达外层空间的新方法。
4·Agencies and companies throughout the world are working on developing technology that would dispose of or capture space debris before it causes serious damage.
世界各地的机构和公司都在致力于开发一种技术，可以在太空垃圾造成严重损害之前将其处理或捕获。
5·Give your mind something else to concentrate on such as reading a book, working on a puzzle, or doing some math problems.
让你的心把注意力集中到其他事情上，例如看书，致力于一个难题，或者是做一些数学题。