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金衡， きんこう

1. troy weight (e.g. troy ounce, troy pound)

tbd

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ポンド

1. pound (unit of weight) 2. pound (currency), pound sterling

tbd

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である

1. be, is

是、=です、=だ

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は

1. indicates sentence topic 2. indicates contrast with another option (stated or unstated) 3. adds emphasis

指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调

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