allergenic serum allergic serum

例句：

1. 1.The pollen from the tree is allergenic and can cause allergies in sensitive individuals.
   树木的花粉是致敏的，对敏感个体会引起过敏。
2. 2. The food allergenic to some people may be safe for others.
   对某些人来说可能是食物过敏，但对其他人可能无害。
3. 3. Allergenic substances are known to trigger an immune response.
   已知致敏物质会触发免疫反应。