单词	quack as a duck,
释义	英華字典資料庫同義詞☞o quack
随便看	theorematic theorematical theorematically theorematic; theorematical theorematic, theorematical, theoremic theorematic、theorematical theorematist theorem-- euclid's theoremic theorem machine theorem of corresponding states theorem of euler theorem of guldinus theorem of intersecting chords theorem of intersecting secants theorem of least work theorem of parallel axes theorem of polyhedra theorem of potential energy theorem of reciprocal deflection theorem of residues theorem of rotation theorem of the mean theorem of three centros theorem of three perpendicular lines