radioligand

例句：

1. 1. Radioligands are used to target specific cellsin the body.
   放射性配体用于靶向体内的特定细胞。
2. 2. The researchers found that the radioligand could bind to a receptor onthe surface of the cell.
   研究人员发现，放射性配体可以与细胞表面的受体结合。
3. 3.The radioligand was designed to detectcancer cells in the body.
   该放射性配体被设计用来检测体内的癌细胞。