任何圆的周长与其直径的比率小于3 1/7但大于3 10/71。
Silence can sometimes be more powerful than words.
I refused to let anyone silence me.
Self-education is, I firmly believe, the only kind of education there is.
创新是半导体行业的命脉，我们必须大力投入研发以保持竞争力。