bloodbrain barrier

例句：

1. 1. Theblood-brain barrier is a crucial factor in the body's defense against toxins.
   血脑屏障是身体对抗毒素的关键因素。
2. 2. The researchers found that the blood-brain barrier plays a significant role in the absorption of drugs.
   研究人员发现，血脑屏障在药物吸收中起着重要作用。
3. 3.The blood-brain barrier is essential for maintaining homeostasis and preventing harmful substances from entering the brain.
   血脑屏障对于维持内稳态和防止有害物质进入大脑至关重要。