And that's a very easy thing to apply, and that allows you now in many cases, to find the moment of inertia in situations which are not very symmetric.

它很容易运用，可以运用于很多例子，为了得到，非完全对称情况下的，转动惯量。

youdao

And now there is a theorem which I will not prove, but it's very easy to prove, and that is called the parallel axis theorem.

这个公式，我不会再验证了，但它很容易证明，它称为，平行轴定理。

youdao

For all the steps in the life cycle Web 2.0 has provided tools and concepts which are not only cost effective but very easy to implement.

对于生命周期中的所有阶段，Web 2.0都提供了工具和概念，它们不仅具有较低的实现成本，并且也非常易于实现。

youdao

And this was a challenge which is not very easy to tackle.

FORBES: Nestle Chairman: 'Don't Go to the Top.'