常見例句用作形容詞 (adj.)Because their hearts had turned hard, stubborn and obstinate.重點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.關于健康的破壞物鈹?shù)臒o知和誤傳是很頑固的。 返回 hard-shell