rational reason

合理的理由：指基于事实、逻辑和常识的合理解释或论证。
常用释义
合理的理由：指基于事实、逻辑和常识的合理解释或论证。

例句

Which made it worse because the rest of my day would be affected by it, for no rational reason what-so-ever.

这下事情更糟了，因为接下来这一天我都会受影响，用理性根本解释不通这一切。

那么他的行为背后有什么理性的原因吗？

Nor is there ever any rational reason why a given cigarette should be the last one.

同样，一支特定的香烟为何是最后一支也从来不存在理性的理由。

The characteristic of converse proof of the judicial proof couldn't become a rational reason for the denial of the test of practice.

另一方面，尽管司法证明是一种逆向思维，但不能因此否定实践标准对它的检验作用。

There is no rational reason to deny DNA testing that could prove innocence or confirm guilt.

拒绝DNA测试没有任何理性的原因，因为DNA测试可以证明无罪或确认有罪。

There is only one rational reason to trade - to make money.

交易的唯一理性的原因是——赚钱。

"There's no rational reason why he always got it right. "

“至于它为什么总能猜对，没有什么合理的解释。”

There's no rational reason why we should feel happy.

没有既定的法则告诉我们为什么我们应该感到快乐。