因素：cause, reason=factor, determinant

　　联系：relationship(relate A to B)=connection(connect A to B)=association(associate A to B)

　　优点：advantage=benefit=superiority=merit=favorableaspects/respects/perspectives=undesirable aspects/respects/perspectives

　　缺点：

　　disadvantage=detriment=inferiority=defect=deficiency=unfavorableaspects/respects/perspectives=undesirable aspects/respects/perspectives