no reason

常见例句

There is no reason to doubt of his honesty.
沒有理由懷疑他的誠實。
If the answer is no then there is no reason to do it.
如果答案是否，那麽就沒有理由去做它了。
Those who object to this advice typically see no reason to define or account for system behavior.
那些反對這個建議的人一般都沒有看到定義或者說明系統行爲的原因。

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.
我完全沒有理由,不能把它轉過來,現在π鍵在這些原子間,而不是我開始展示的那些原子間。
麻省理工公開課 - 化學原理課程節選
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，我們沒有理由放棄,我們目前現存有關正義的概唸。
耶魯公開課 - 政治哲學導論課程節選

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