Noun:
-
a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239)
用作名词 (n.)
- An atomic bomb can annihilate a city.
一枚原子弹能毁灭一个城市。
- The first atom bomb was set off over Hiroshima.
第一颗原子弹是在广岛上空爆炸的。
