n.转换；变化
名词transformation的复数形式.
Many transformations compare data values. 很多转换都对数据值进行比较。
You can now see the transformations in action. 现在可以看到转换正在工作。
Although no one observed those transformations, the indirect evidence is clear, unambiguous and compelling. 虽然没有人观察到那些变化，间接的证据却清楚而毫不含糊，教人难以推诿。
