二重窓
定義
double-pane window, found especially in Hokkaido and Tōhoku as cold-proofing
CEFRレベル
C2
熟達
この単語はCEFR C2語彙に含まれます——熟達レベル。
この単語はCEFR C2語彙に含まれます——熟達レベル。
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