一心一意

一心一意 [yī xīn yí yì]

1. ■ put one's whole heart into; apply [bend] the mind to; be bent on; be bent wholeheartedly on; be engrossed in; concentrated heart and soul; devote oneself wholly to; give one's whole mind to; heart and soul; pay undivided attention to; set one's mind upon; with all one's heart and soul; with one heart and one mind; with one's whole heart and soul; wholeheartedly:

他一心一意准备试验。 His whole mind was trying out the experiment.