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INTERMEDIATE LEVEL
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to immunize, exempt from military service ☊ 
miễn dịch ☊
免疫 → ☊ mian3yi4 immunity (to disease) ☊ Miễn dịch ☊
→ → →
like: miễn dịch → →
Our immune systems are killing billions of germs right now. ☊ billion ☊
The disease attacks the immune system in a similar way to AIDS. ☊ similar ☊