It was not until that ship was near sinking did the radiomen send out the new signal.

直到该船快要沉没时，报务员才发出了这个新的呼救信号s.o.s。

youdao

It was not until late that night in bed that John noticed from a calendar hanging on the wall that it was August the Twenty-sixth.

那天晚上，约翰躺在床上，很晚才从墙上挂的日历上看到今天是8月26日。

youdao

It was not until 1920 that the US Constitution was changed to give all women voting rights.

直到1920年，美国宪法才得以修改，赋予所有女性投票权。

youdao

But it was not until March tenth, eighteen seventy-six that Bell was able to send the human voice over a wire.

VOA: special.2010.05.14

And it was a practice that was not broadly used until somebody really studied systematically.

这项技术一直没有广泛应用,直到有人系统地研究它

耶鲁公开课 - 生物医学工程探索课程节选

Smallpox affected world history hundreds of years ago, and it was a disease that was common in Europe, but not common in the Americas until the Americas were colonized.

天花影响了几个世纪前的历史,这种病在欧洲很常见,但在美国不多见,直到美国成为殖民地

耶鲁公开课 - 生物医学工程探索课程节选

It was not until 2003 that any testing program was instituted, and then the results were not made public.

FORBES: Magazine Article

It was not until late that night that the situation was brought under control.

CNN: Walking on a Tightrope

That insight turned out to be key, although it was not until 1924 that it was used to formulate what is known as the twin rule of pathology, and twin studies really got going.

ECONOMIST: Twin studies, genetics and the environment