no reason

基本解释

There is no reason to doubt of his honesty.
没有理由怀疑他的诚实。
If the answer is no then there is no reason to do it.
如果答案是否，那么就没有理由去做它了。
Those who object to this advice typically see no reason to define or account for system behavior.
那些反对这个建议的人一般都没有看到定义或者说明系统行为的原因。

The observers on the ground had no reason to believe the white spot they saw was made by the spacecraft.
There's absolutely no reason I couldn't have switched it around and said that instead the pi orbitals form between these atoms instead of those first atoms I showed.
我完全没有理由,不能把它转过来,现在π键在这些原子间,而不是我开始展示的那些原子间。
麻省理工公开课 - 化学原理课程节选
Until that point, we have no reason to really give up on our current existing ideas about what justice is.
直到完全了解，我们没有理由放弃,我们目前现存有关正义的概念。
耶鲁公开课 - 政治哲学导论课程节选

As an illustration consider someone punching you in the nose on the bus for no reason.
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