遗憾的是，科学家们在每升雪里发现1800粒塑料微粒。
Sadly, the scientists found 1800 pieces of microplastics per liter of (每升) snow.
纳米科学是一门研究物质细小微粒的科学，它已经成为现代科技中最重要的前沿研究领域之一。
Nanoscience is the science of small particles of materials and is one of the most important research frontiers in modern technology.
美国密歇根大学的亚伦·利恩·哈特教授认为，那本身不能改变科学家对亚原子微粒的物理学认知。
That in itself does not alter scientists' understanding of sub-atomic physics, according to Professor Aaron Leanhardt of Michigan University in the US.
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