健康饮食有助于增强你的免疫系统。

Eating healthily will help to improve your ___immune ___system.

当你患有狼疮时，你的免疫系统会产生攻击自身重要器官的抗体。

When you have lupus, your ___immune ___system produces anti-bodies against your own vital organs.

长期压力会削弱你的免疫系统。

Chronic stress can weaken your ___immune ___system.