- 里(village; mile)
- 千(thousand; many)
Heavy as carrying a thousand miles of road on your shoulders.
heavy hydrogen (isotope)
Deuterium is an isotope of hydrogen.
deuterium
heavy hydrogen (isotope)
Deuterium is an isotope of hydrogen.
deuterium
Heavy as carrying a thousand miles of road on your shoulders.
Heavy as carrying a thousand miles of road on your shoulders.
heavy hydrogen (isotope)
heavy hydrogen (isotope)
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