adj.頑強(qiáng)的；頑固的；精明的；講究實(shí)際的

They had fought hard for equal rights. 他們?yōu)榱双@得平等權(quán)利已經(jīng)進(jìn)行了頑強(qiáng)的斗爭(zhēng)。

However, in a long hard season, character counts for a lot. 然而在漫長(zhǎng)的一個(gè)賽季中，頑強(qiáng)的性格相當(dāng)重要。

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。