shà​fèi​kǔ​xīn

to take great pains

Senses

煞费苦心/ 煞費苦心 shà​fèi​kǔ​xīn to take great pains

to take a lot of trouble; to put in a lot of effort; to rack one's brains to accomplish something

References

synonym 煞费苦心/煞費苦心 挖空心思/挖空心思
synonym 呕心沥血/嘔心瀝血 煞费苦心/煞費苦心