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heavy-duty (EN)
形容詞

形容詞 “heavy-duty”

基本形 heavy-duty (more/most)
  1. 頑丈な
    The workers wore heavy-duty boots to protect their feet on the construction site.
  2. すごい (非常に真剣な、または極端な)
    The movie dealt with some heavy-duty topics like war and loss.