zhuān​yī

single-minded

专一 專一 zhuān​yī
single-minded
concentrated; devoted to one thing or person without distraction
to do nothing but
to specialize in; to be always doing (something, often negative)
of one mind
(literary) to be of one heart and mind; to act in unison; united

Frequency

Movie subtitles
1.25 per million appears in 1% of films
Written text
4.50 per million

Sources