precautionaryKK [prɪˋkɔʃənɛri] /pɹɪˈkɔʃənɛɹi/發音形容詞1預防的、預防性的、以防萬一的The school closed for two days as a precautionary measure.學校停課兩天,以作為預防措施。2預警的、防範的正式Regulators applied the precautionary principle before approving the chemical.主管機關在核准該化學品前採用了預警原則。