So often we hear of the shortcomings of our youth, but these youngsters answered a cry for help and gave proof that generosity and love prevail.
经常听到人们指责我们这代年轻人的缺点，但正是这些年轻人在天灾之时，回应了人们的求助，证实了人世间充满了慷慨和爱心。
The author gave out the delta the vector representation of "five minds" by means of five theorems. and supplied the proof.
通过五个定理给出三角形“五心”的向量表示方法，并提供证明。
The author gave out the delta the vector representation of "five minds" by means of five theorems. and supplied the proof.
通过五个定理给出三角形“五心”的向量表示方法，并提供证明。
应用推荐