Such self-reliance is a principalvalue of Child rearing in middle-class America.
这种自力更生的精神是最重要的育儿观。
2
The principalvalue of the collection is simply that anything from Simone Weil's pen is worth reading.
这部文集首要的价值很简单：凡是出于西蒙娜·薇依手笔的文字都值得一读。
3
We proved that each square quaternion matrix has at least one right characteristic principalvalue and its eigenvector, and a concrete solution was given.