原因很简单——我们就是懒。

The reason is simple—we are just lazy.

youdao

原因很简单：“我也喜欢她。”

The reason was so simple: "I'm fond of her too."

youdao

原因很简单。

The reason is simple.

youdao

For the simple reason that the number of possible chess games is so huge, that computers can't calculate it.

原因很简单,棋局的潜在变数相当之大,以至于计算机根本无法将其完全计算出来

耶鲁公开课 - 死亡课程节选

A theodicy can be seen as heretical or even blasphemous for the simple reason that it -- think of what it assumes.

斯奥迪斯会被看作是异端思想甚至是亵渎上帝,原因很简单--想想斯奥迪斯假定了什么。

耶鲁公开课 - 弥尔顿课程节选

And the reason is simply because the energy that Z we gain in terms of moving up in z, 5 so from going to z equals 4 to z equals 5, -- is actually outweighed by the energy it takes to go into this new shell, to go into this new sub shell.

原因很简单,就是因为我们通过提升，所得到的能量--从，Z，等于，4，到，Z，等于，事实上比填充到这个新的壳层,新的亚壳层，所消耗的能量更多。

麻省理工公开课 - 化学原理课程节选