跳动to move up and down

• 心脏的跃动

  heart beat

• 火苗在夜幕中跃动。

  The flames jumped up and down in the curtain of night.

• 播种箱里饱满的籽粒在跃动着，渴望回到大地母亲的宽阔的胸怀里。

  The plump seeds are jumping up and down in the planting box, desperate to return to the broad embrace of Mother Earth.

• 那是一簇跃动不已的圣火。

  That is a constantly jumping sacred flame.