一直以来你都在怀疑自己的病因，你是在和一个无形的敌人斗争。
All the time you are in doubt about the cause of your illness, you are fighting against an invisible enemy.
由于有了电子扫描显微镜下的花粉颗粒图像，花粉症患者现在能够看到他们无形的敌人的真正面目。
H ay fever sufferers can now see the face of their invisible enemy - thanks to these Scanning Electron Microscope images of pollen grains.
这样的话，你就能化解敌人的攻势于无形。
In this way, you will be able to resolve the enemy's offensive in the invisible.
这样的话，你就能化解敌人的攻势于无形。
In this way, you will be able to resolve the enemy's offensive in the invisible.
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