英语语法分析

The boy's fosterage to America came at an early age.

那男孩被认养到美国发生在早先的时期。

The application of the membranes in separation, preservation, fosterage, medicament release and artificial organ etc is also reviewed.

概述了塑料微孔膜在分离、保鲜、助长、药物释放、人造器官等领域的应用。