1 to make sth, especially sth bad, happen suddenly or sooner than it should 使突然或提前发生（尤指坏事）
2precipitate sb/sth into sth to suddenly force sb/sth into a particular state or condition 使骤然处于或陷入（某状态）: The president's assassination precipitated the country into war.暗杀总统事件使该国陷入战争状态。
precipitate²
/prɪˈsɪpɪtət ||; prɪˈsɪpətɪt/adj (formal 正式) (used about an action or a decision 指行动或决定) happening very quickly or suddenly and usually without enough care and thought 仓促的；轻率的 ➔precipitatelyadv
precipitate³
/prɪˈsɪpɪteɪt ||; prɪˈsɪpəˌtet/noun [C] (technical术语) a solid substance that has been separated from a liquid in a chemical process 沉淀物