プログレッシブ和英中辞典(第4版)の解説
おどらす【躍らす】
その男はがけの上から海に身を躍らせた
The man threw himself from the top of the cliff into the sea.
胸を躍らす
make one's heart beat [leap]／be [get] excited ((about))
胸を躍らせて
with a 「rapidly beating [pounding] heart
彼女はその光景に胸を躍らせた
Her heart leaped [leapt/began to pound] at the sight.