She left the room abruptly without explanation.

她未作解释就突然离开了房间。

《牛津词典》

In April, without explanation, the statue disappeared.

四月，却没有任何解释的将塑像移走了。

youdao

That example USES three different building blocks, but without explanation.

该示例使用了三种不同的构建块，但是没有相应的说明。

youdao

Some fact about us that calls out for explanation, and the claim on the part of the dualists was, we couldn't explain it without appealing to a soul.

有些关于我们的事实需要解释,而二元论者的主张是,如果不诉诸灵魂,我们就无法解释这些

耶鲁公开课 - 死亡课程节选

I am going to run a program called Nano nano hello c and type nano hello.c and I'm gonna type the following very quickly without much explanation because we'll dive into this more next week.

我要运行一个Nano程序,键入,我快速写下下面的内容,不打算做过多的解释,因为下周我们会深入了解这些。

哈佛公开课 - 计算机科学课程节选

Without explanation, Justice Ginsburg, appointed to the High Court by President Clinton, simply denied the request.

FORBES: Employers Face Uncertainty as Supreme Court Twice Declines - For Now - to Enter Fray over Legality of Obama Recess Appointments to NLRB

Armstrong taught at Cincinnati for eight years before leaving in 1979, characteristically without explanation.

CNN: Neil Armstrong, a hero who shunned fame

As their friendship deepened, he asked her to promise him that she would never disappear without explanation.

NEWYORKER: Trial by Fire