1、It forms the die-hard section of the anti-Japanese united front.
他們是抗日統(tǒng)一戰(zhàn)線中的頑固派。

2、A die-hard conservative, campaigner, sceptic
死硬的保守分子、搞運動的人、懷疑論者

3、"There will always be die-hard foodies who will fly to Copenhagen to taste them," Murphy said.
莫非說：“總是會有一些鐵桿美食愛好者千里迢迢地飛往哥本哈根去品嘗美食?！?/p>

die-hard翻譯