they can teach with one heart and one mind without the worries behind
Related Translations:
后顾之忧: any menace from the “rear”; cares at home; family considerations that cause delay in decision; fear of an attack from the rear; fear of attacks from behind; fear of disturbance in the rear
一心一意: 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 t
