adj.頑固的;死硬的
Because their hearts had turned hard, stubborn and obstinate. 重點(diǎn)是在于他們的心已經(jīng)是硬的,是固執(zhí)的,是頑固的。
But ignorance and misinformation about the health hazards of beryllium die hard. 關(guān)于健康的破壞物鈹?shù)臒o(wú)知和誤傳是很頑固的。