死心

bàn bù dào tā jué bù sǐ xīn

办不到，他决不死心。

He won't give up until he achieves his goal.

cóng wèi sǐ xīn

从未死心

never give up hope

nǐ sǐ xīn ba

你死心吧。

Just give up on this idea.

jǐn guǎn shī bài duō cì tā réng bù sǐ xīn

尽管失败多次，他仍不死心。

Although he has suffered repeated failures, he has still not given up.

wǒ wèi shén me bù néng qù wēi ěr bù sǐ xīn de yòu wèn le yī biàn

“我为什么不能去？”威尔不死心地又问了一遍。

"Why can't I come?" repeated Will with dogged persistence.