She turned away without leave.

她没打招呼,径自走了。

《新英汉大辞典》

'The US is no longer absent without leave', she said.

“美国不在未经许可擅离职守。”她说。

youdao

They cannot leave the country without permission.

没有许可他们不得离开这个国家。

《柯林斯英汉双解大词典》

Just when I tell you to go, you leave me. You know you can't leave a schoolroom without raising your hand, no matter where you're going."

VOA: special.2009.07.19

They would have had to be damn fools to have settled there without that being in their minds, although some of the places where they settled leave us puzzled, and have left the ancients puzzled.

如果不是这样的话,他们的脑子就是进水了,确实是有一些殖民地建立在不毛之地,这让我们和古人都很困惑

耶鲁公开课 - 古希腊历史简介课程节选

But you cannot leave the city without going to Golden Gate Park and going to California Academy of Sciences.

金门公园和加州科学院是非去不可的。

关于旧金山的博物馆 - SpeakingMax英语口语达人

Absent without leave, America helped foster an overblown perception in the region of America's decline and China's ascent.

ECONOMIST: Banyan

The most common form of misconduct within the submarine service is going absent without leave, which accounts for about half the incidents.

BBC: Submariners punished for drunken misconduct

And because of high rates of attrition (casualties and retirement, but mainly protracted absence without leave), just maintaining those numbers requires constant effort.

ECONOMIST: The war in Afghanistan