It happened—whether by accident or design —that the two of them were left alone after all the others had gone.

碰巧—不知是偶然还是有意安排—其他人走后，只剩下了他们两个人。

《牛津词典》

The pilot, whether by accident or design, made the plane do a sharp turn.

飞行员不知是有意或无意，让飞机来了个急转弯。

youdao

Whether by accident or design, that helped concentrate minds.

无论是否故意，这个错误有助于集中注意力。

youdao

There should be some sense by the end of the year,he says, whether or not serious progress is being made.

VOA: special.2009.05.23

That people were conceived, whether by nature or by God or even by evolution, with a certain order to them; some born to do this and some born to do that and some born to do that.

即人的等级已经被设定好了,不管是被自然还是上帝,还是进化使然,天命不可违,有人天生做这种事,有人天生做那种事等等

耶鲁公开课 - 美国内战与重建课程节选

By experiencing these emotions, whether the ups and the downs, what you are doing is being, being a human being.

通过体会这些情绪，不论是起是落，你正在做的是，作一个人。

哈佛公开课 - 幸福课课程节选

But whether by default or design, the country is becoming increasingly divided along dangerous lines.

BBC: Syrians hide underground to escape struggle for control

Exclusivity is often part of strategic arrangements, whether by product line, market or geography.

FORBES: Strategies For Small Firms Partnering With Big Companies

Obligatory ruling is Allah's word concerning those whom he commands, whether by requirement or by choice.

CENTERFORSECURITYPOLICY: Center For Security Policy