hallmark
US /ˈhɑːl.mɑːrk/
UK /ˈhɔːl.mɑːk/
名詞
ホールマーク
a mark stamped on articles of gold, silver, or platinum in Britain, certifying their standard of purity.
動詞
ホールマーク
stamp with a hallmark.
例:
•
he was reprimanded for not hallmarking his work