The study of ancient DNA is like opening a window to the past.
我们生产的每一桶石油都必须负责任地完成,充分考虑环境和社会影响。
Art is a virus that infects our thoughts and changes our way of perception.
To develop, enterprises must be rooted in real industry and down-to-earth.
我时刻准备着学习,但是我不喜欢别人给我上课。