So you see a lot of very simple ratios among the orbits of these planets.

所以你会看到这些行星的轨道之间有很多非常简单的比率。

Like other banks, Deutsche also argues that a simple leverage ratio is not much use in assessing the risks that lenders take.

与其他银行一样，德行也争论道，说简单杠杆率在评估贷方承担的风险时并无大用。

Pythagoras, a Greek philosopher who lived around 500BC, is said to have discovered that notes that sound harmonious together have simple ratios between their frequencies: for example, one that is an octave higher than another has double the frequency.

据说公元前500年左右，希腊哲学家毕达哥拉斯已经发现了发音和谐的音符在频率之间成简单比例：例如，高一个八度的音符具有两倍的频率。