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所屬欄目：世界英漢雜輯

There are three systems of measurement. The avoirdupois sys-tem is the common one for general purposes. The long hundred-weight and long ton are the ones in use in Britain; the short hun-dredweight and short ton are used in America. The troy system isused ......（本文共 362 字 ）     [閱讀本文] >>


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