cell
/sel; sɛl/ n
1 very small room, eg for a monk in a monastery or for one or more prisoners in a prison 小房间（如修道院里的密室或狱中的牢房）.
2 compartment in a honeycomb （蜂房的）巢室.
3 device for producing an electric current by chemical action, eg the metal plates in acid inside a battery 电池.
4 microscopic unit of living matter, containing a nucleus 细胞
Human tissue is made up of cells. 人体的组织是由细胞构成的. * cancer cells 癌细胞.
5 small group of people forming a centre of (esp revolutionary) political activity （尤指革命的）政治活动小组
a terrorist cell 恐怖分子的小组.