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Sentence
Span Details
2019
-noun
年
year; counter for years; counter for grades; apprenticeship period (usu. ten years)noun, counter
まで、
until; as far asgrammar
キログラム原器
prototype kilogram; international prototype of the kilogramnoun
が
subject markergrammar
質量
mass; quality and quantitynoun
の
possession, attribution, nominalizer, or nominal linkergrammar
基準
standard; criterion; benchmarknoun
だった。
past copulagrammar