Schools receive strikingly different sums to educate their pupils .

学校收到明显不同金额的投资，去教育他们的学生。

The sums were small but the path is clear .

发行的债券总数虽然不多，但方向是明确的。

The sums are simply too difficult .

这道算术题太难了。

But the methods they proposed for even the simplest sums were desperately cumbersome .

不过，他们的方法会令最基本的求和运算都冗长得令人绝望。

The sums involved are startling .

定量宽松涉及的金额令人吃惊。