The theory and practice of "Westernization group" suffered the opposition of "the diehards" of traditional force in the same camp.

洋务派的理论和实践遭到同一阵营的传统习惯势力“顽固派”的反对。

youdao

However, for the diehards who wish to do physics in spite of a bad job market, you may plan to have a “fall-back” job to pay the bills (e.g. programming) while you conduct research on your own time.

这意味着离开了原来的领域，然而,对于尽管市场不好而仍想做物理学家的一意孤行的顽固分子，我认为你有必要计 划"退一步"的工作-即后路，以支付你做你自己个人研究的帐单（比如兼职从事编程）。

youdao

A few diehards are trying to stop the reforms.

少数顽固分子试图阻止改革。

《牛津词典》

And since the diehards seldom vote Democratic anyway, Mr Obama may see little risk in upsetting them.

ECONOMIST: Barack Obama's foreign policy

And if the smaller Times does win over the diehards, could it spell the death of the broadsheet?

BBC: NEWS | UK | Death of the broadsheet?

Yet, even in these bastions, there are at least some signs that the diehards are losing stomach for a fight that it is not in their interests to win.

ECONOMIST: Southern history (2)