罗 塞博士和约翰逊博士都推荐不含防腐剂的人造泪，因为它们是最舒缓的，所含可能刺激眼睛的添加剂也更少。
Rowsey and Johnson recommend preservative-free tears because they are the most soothing and have fewer additives that could potentially irritate.
实验中小鼠学会了受到简单刺激时眨眼睛，——若没有芯片，这是不可能实现的。
During the experiment the rats learned to blink to a simple stimulus response, something that wasn't possible without the use of the microchip.
长时间接触可能会刺激眼睛。
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