bloodstream

Once the medication is injected, it travels through the bloodstream to reach the affected organ.

(Chinese) 药物一旦注射，就会通过血流到达受影响的器官。

High levels of glucose in the bloodstream can be an early indicator of diabetes.

(Chinese) 血液中高浓度的葡萄糖可能是糖尿病的早期指标。