Definition: the smallest basic unit of a plant or animal Level: B2
脑细胞和血细胞都是人类细胞的类型。
Brain cells and blood cells are both types of human ___cell.
癌细胞可以通过放射疗法靶向。
A cancer ___cell can be targeted by radiation therapy.
植物细胞有细胞壁，而动物细胞没有。
The plant ___cell has a cell wall that animal cells lack.
