这句英语语法对吗

题目

这句英语语法对吗
The college students have been under the sheilds of families and schools(as well as the chinese education system) for 20 years.这个under我觉得不对,但怎么改呢?大家帮我看看,谢啦~

答案

Sheild是“盾”的意思,那么由“盾”来保护,应该是躲在“盾”后.用behind个人观点：The college students have been behind the sheilds of families and schools(as well as the chinese education system) for 20 y...