• この絵は私の丹精の作品です
    • This picture cost me a great deal of labor./I have putmy heart and soul [my all] into this picture.
    • 丹精してこの仕事を終えた
    • I made a great effort to finish this work./I took great pains with this work.
    • 少女は丹精をこめて小鳥を育てた
    • The girl raised the bird with the utmost care.
    • 丹精したかいがなかった
    • All my labor [effort] 「has come to nothing [was wasted].