metabolic pathway的用法和样例：
例句
- Howeer, metabolic pathways are actually labyrinths of interconnected garden hoses with complicated flow patterns.
然而，事实上，代谢途径如同是由众多错综复杂浇水管道组成的迷宫，它们有着复杂的流动参数。 - Secondly the enzyme is inhibited by an intermediate lower down the metabolic pathway, usually either phosphoenolpyruvate or citrate.
其次，减缓代谢途径的一个中间体，通常是磷酸烯醇或柠檬酸降低酶的活性。
