precursory
(a.)先驅的,前兆的,作預備的
pre·cur·so·ry /prɪˈkɝsərɪ/ 形容詞
預兆的,前驅的
Pre·cur·so·ry a. Preceding as a precursor or harbinger; indicating something to follow; as, precursory symptoms of a fever.
Pre·cur·so·ry, n. An introduction. [Obs.]
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precursory
adj : warning of future misfortune [syn: premonitory]