etymological cognate的用法和樣例：
例句
- First, they have local effects by binding to their cognate receptors on peritumoral vascular endothelial cells.
第一，它們通過結合至腫瘤瘤周血管內皮細胞的同源受體而發揮局部作用。 - Recognition of signal sequences by cognate receptors controls the entry of virtually all proteins to export pathways.
同源受體的單序列識別控制進入不同蛋白的運送途徑。
