Vaccines are a useful invention to ______ human beings against many ailments.
举一反三
- Why can many animals ran faster than human beings?
- The unity of the heaven, the earth and human beings can also reflected in many works of Chinese painting.
- Will it be a(n) ______for human beings if one day AI replaces humans in many jobs?(observation/ tragedy)
- Will Mars become the new _____ ( 住处 ) of human beings? It seems many people are fascinated by the idea of settlement on Mars.
- Human beings also have hardware and software. __________ is to human beings what software is to computer.