The received wisdom is that they cannot win.

大家一致认为他们不会赢。

《牛津词典》

We know they cannot win, but if they do win sometimes, it's even funnier.

我们知道他们不可能赢，但如果他们有时真的赢了，那就更有趣了。

youdao

They cannot escape our view; and they cannot win.

他们逃不出我们的视野他们不可能赢。

youdao

The 2012 Presidential candidates know they cannot win the nomination without the support of Tea Party Republicans.

FORBES: The Left Brewing Its Own Tea

Mr Bush has told Israel that the Palestinians need a state, and the Palestinians that they cannot win one through terrorism.

ECONOMIST: Israel and Palestine

In the past, he has said drugs laws are out of date and that the police are engaged in a battle which they cannot win.

BBC: Drugs (generic)