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strengthener    添加到生词本 复制网址
基本释义
  • 助力器
词形变化
  • 时　态：strength·ened, strength·en·ing, strength·ens
    名　词：strength'en·er
英英解释

  • 　1个名词解释

    1. a device designed to provide additional strength
      [同] reinforcement, strengthener
      [例]
      • the cardboard backing was just a strengthener
      • he used gummed reinforcements to hold the page in his notebook