nucleusKK [ˋnukliəs] /ˈnukliəs/发音名词1原子核物理The nucleus of an atom contains protons and neutrons.原子核里含有质子和中子。2细胞核生物Most of a cell's DNA is stored inside the nucleus.细胞的DNA大多储存在细胞核里。3核心、中心、骨干These five players form the nucleus of the team.这五名球员是球队的核心。4彗核天文The comet's nucleus is only a few kilometers across.那颗彗星的彗核直径只有几公里。用这个字练口说→