バタフライ

(1)diurnal insect typically having a slender body with knobbed antennae and broad colorful wings

(2)通常、こぶのある触覚と広い色の豊富な羽をもつ細い体を持つ昼行動性の昆虫

(3)a swimming stroke in which the arms are thrown forward together out of the water while the feet kick up and down

(4)足を上下にけり、水の中から外へ両腕をいっしょに前へ振り落とす泳法