The COVID-19 pandemic has lasted for nearly three years. Will it improve in the second half of the year? Academician Zhong Nanshan gives a new direction
Hundreds of vertical light columns appeared in the sky of South Korea. Is it because life outside the human world landed or was it an artillery fire attack?
There was no fingerprint recognition technology in ancient times, so why did you still have to "press your handprints"? This is the wisdom of the ancestors