a

Teens help students in remote areas

Luo, a Chinese university student , only turned 18 in January, but he's already made a big difference to the lives of many poor young people living in China's remote （偏远的）areas. His online English lessons have offered them a chance to know a world they could only imagine before. Many have achieved university dreams.

b

Luban Lock: magic Chinese puzzle

2,000 years ago, a famous Chinese carpenter named Luban created a magic Chinese puzzle called "Luban Lock"， which he used to test how smart his son was. Watch as Rachel learns to make this Chinese puzzle and tries to solve it! Do you want to have a try?

c

First picture of the black hole

The first picture of the huge black hole at the heart of the Milky Way was shown on Thursday, thanks to the efforts of astronomers (天文学家)from around the world, including 17 from China. Shen Zhiqiang says that the future purpose of the Event Horizon Telescope (EHT) is to get video pictures of the black hole at the center of the Milky Way.

d

China' s healthcare

China has made progress in public health over the past years. In 1949, average life expectancy （平均寿命）was 35. It reached nearly 77 in 2019, much higher than the world average of 72. In 1949, there were just 3,670 medical and health organizations in the whole country. The number increased to nearly 1 million at the end of 2018. Health insurance （保险）has also benefited over 95 percent of the population.