yī​xīn​yī​yì HSK7

single-minded

一心一意 yī​xīn​yī​yì
single-minded idiom
Concentrating one's thoughts and efforts entirely on a single goal or person; wholeheartedly devoted and focused.

Since you've made your decision, you must carry it out wholeheartedly.

Frequency

Movie subtitles
0.980 per million appears in 1% of films
Written text
3.63 per million

Details

HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT