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单词 signal word
释义

Definition of signal word in English:

signal word

noun
  • A word used as a signal; specifically a word printed on the packaging of a hazardous material to indicate the degree of toxicity.

Origin

Mid 17th century.

Definition of signal word in US English:

signal word

noun
  • A word used as a signal; specifically a word printed on the packaging of a hazardous material to indicate the degree of toxicity.

Origin

Mid 17th century.

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