善于安置营垒,计划十分周密,遇事十分沉着,即使矢箭如雨,他仍泰然自若,一切按计划行事,他很勇敢,亲自带兵救出被西夏李世辅挟持的完颜杲,他一生中立下不少的战功。keep cool;be as cool as a cucumber;behave with perfect composure;Being composed, one does not turn a hair.【释义】泰然:镇静的样子;自若:跟平常一样。形容碰上意外、严重或紧急的情况;能沉着镇静;不慌不忙。