v. （突如其来地）使发生( precipitate的第三人称单数 ); 促成; 猛然摔下; 使沉淀
英文释义
n a precipitated solid substance in suspension or after settling or filtering
v bring about abruptly
v separate as a fine suspension of solid particles
v fall from clouds
v fall vertically, sharply, or headlong
v hurl or throw violently