The party now has an unassailable lead.

这个党的领先地位现在坚不可摧。

《牛津词典》

Such an unassailable, unconditional and seamless love happens only once.

如此不容置疑的、无条件的、天衣无缝的爱一生只会出现一次。

youdao

It is only by doing so that we can reach an unassailable consensus about the sun's true level of influence on the Earth and its climate.

但要做到这个，我们必须要对太阳真实水平以及其地球和气候影响得到一个无懈可击的共识。

youdao

Added to those of its traditional European allies, the votes give its candidate an unassailable advantage.

BBC: African viewpoint: Banking on change?

Tobacco companies have gargantuan barriers to new competition what Warren Buffett might call an unassailable moat.

FORBES: My Favorite Tobacco Stock Is Intel?

The Liberal Democrats capitalised on their successes and gradually built up an unassailable lead.

BBC: Playing the politics game