来测定这个问题，你的兽医会将一个污物放入比雄眼中来测试眼泪的颜色。
To determine this problem, your vet will put a stain in the eye to color the tears.
眼泪是撕心裂肺后从眼睛内挤压出来的没有颜色的血液。
The tears is out of eyes squeezed out after the piercing without color of blood.
眼泪是没有颜色的血。
这些被设计的微型颗粒和眼泪中的糖分子发生作用，引起一个改变自身颜色的化学反应。
These engineered nanoparticles react with glucose molecules found in tears, causing a chemical reaction that changes their colour.
这些被设计的微型颗粒和眼泪中的糖分子发生作用，引起一个改变自身颜色的化学反应。
These engineered nanoparticles react with glucose molecules found in tears, causing a chemical reaction that changes their colour.
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