parental loss

• 父母缺失

parental loss的用法和样例：

例句

1. Causes for the loss of the enterprises' creditability are various.
   导致企业诚信缺失的原因是多方面的。
2. Abiotrophy means the loss of a vital nutritive factor.
   活力缺失指重要营养因子的缺乏。