The success of the system is not in doubt.

这种制度的成功确定无疑。

《牛津词典》

That a boost is needed is not in doubt.

毫无疑问其需要一个助推器。

youdao

One thing is not in doubt: the longer the world temporizes, the more people die.

有一点是不用怀疑的：世界耽搁越久，越多人就会遇害。

youdao

"It sure looks like the way they are suppressing speech, the way they are suppressing crowds, they way in which people are being treated that there is some real doubt about I do not think we are in a position to say,".

VOA: standard.2009.06.14

That principle is accepted by the secretary of state and is not in doubt.

BBC: Abu Qatada: Government appeal bid rejected

The deputy prime minister's determination to roll back the tide of traffic is not in doubt.

ECONOMIST: Transport

Central Europe's long-term destination is not in doubt, even if its time of arrival is.

ECONOMIST: Central Europe