潜心
qiánxīn
HSK 7
潜心 — qiánxīn
- to concentrate fully on something; to devote oneself wholeheartedly
他潜心研究这项课题多年,终于取得了突破。 tā qiánxīnyánjiū zhèxiàng kètí duōnián zhōngyú qǔdé le tūpò — He devoted himself wholeheartedly to researching this project for many years and finally made a breakthrough.