And when I come back, blammo! He's headless!

等我回来的时候 嘣 他的头不见了！

They started by creating an isotope of the element berkelium -- that alone took a year and a half -- and then bombarded it with isotopes of calcium, until … blammo.

他们首先创造锫元素的同位素——仅此一项就花了一年半的时间——然后用钙的同位素轰击它，直到...... blammo。