Austin Liu (R), a member of a high school robotics team Technicbots, delivers a box of face shields and ear guards to a local clinic representative in Plano, Texas, the United States, on April 28, 2020. A few days ago, North Central Texas Community Health Care Center received a special donation -- 70 face shields and 300 ear guards. All the equipment was made by local high school students using 3D printing technology. (Photo by Dan Tian/Xinhua)
