A proof tells us where to concentrate our doubts.
无人机的应用将无处不在。
Innovation is not just about creating new products, but about reimagining how we serve our consumers every day.
The liberal democratic system may not be perfect, but it is the best system we have.
安静可克制躁动,沉稳可克制浮气,宽宏大量能克服心胸狭窄,平缓可克制急躁。