苦心

tā fèi jìn kǔ xīn jiào yù hái zi

他费尽苦心教育孩子。

He took great pains to educate his children.

wǒ shà fèi kǔ xīn xiǎng yào shēng zhí

我煞费苦心想要升职。

I took great pains to get a promotion.

xué shēng yào lǐ jiě lǎo shī de yī piàn kǔ xīn

学生要理解老师的一片苦心。

Students should understand the teacher's painstaking efforts.

tā kǔ xīn jīng yíng zhe yī qiè

他苦心经营着一切。

He manages everything painstakingly.

kē xué jiā men yī zhí zài kǔ xīn yán jiū ái zhèng de zhì liáo

科学家们一直在苦心研究癌症的治疗。

Scientists have been painstakingly studying the treatment of cancer.

jiào liàn kǔ xīn péi yǎng tā chéng wéi yī míng yōu xiù yùn dòng yuán

教练苦心培养他成为一名优秀运动员。

The coach worked hard to make him an excellent athlete.