ungrateful
adj.忘恩负义的；不领情的 副词：ungratefully名词：ungratefulnessungrateful Adjective not feeling or showing gratitude;"ungrateful heirs""How sharper than a serpent's tooth it is / To have a thankless child!"...
adj.忘恩负义的；不领情的 副词：ungratefully名词：ungratefulnessungrateful Adjective not feeling or showing gratitude;"ungrateful heirs""How sharper than a serpent's tooth it is / To have a thankless child!"...