They tell us, Sir, that we are weak — unable to cope with so formidable an adversary.

先生，他们告诉我们，我们是弱小的——不能应付如此强大的对手。

youdao

He's a formidable adversary, and negotiating with him is not a lot of fun.

CNN: Captured U.S. soldiers face military court in Yugoslavia

He could by turns be incredibly generous, funny, playful and kind, while at the same time Mr Winner made a formidable adversary.

BBC: Michael Winner: stars pay tribute

Meanwhile, the senior U.S. envoy who had spearheaded efforts to get Milosevic to sign onto a Kosovo peace deal said Thursday the Yugoslav president was "a formidable adversary" who chose bombings over diplomacy.

CNN: Captured U.S. soldiers face military court in Yugoslavia