短語詞組短語The ten principal disciples 十大弟子the eight principal syndromes 八綱the Vice Principal 副校長the three principal parts 動詞的三個主要形式The Progress Principal 進步原理the rotating principal component 鏇轉(zhuǎn)主分量分析Including The School Principal 包括校長the maximum principal stress 最大主應(yīng)力The First principal component 第一主成份 返回 the principal