用药物进行实验，要知道那种基因需要改良比较困难。
With chemical testing, knowing which genes to modify is hard.
他们服用了实验性的药物，而这种药物从未对人类进行安全检测，只是今年早些时候被确认为潜在治疗用药。
They are getting an experimental drug, which has never been tested for safety in humans and was only identified as a potential treatment earlier this year.
将豚鼠脱毛后使用药物绷带分别进行皮肤刺激、皮肤急性毒性实验、皮肤过敏实验，进行动态病理观察。
Skin irritation, skin acute toxicity, skin allergy experiments of guinea pig with removed hair by Chinese medical bandage wasinvesticated to observe pathology dynamic.
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