helping others is helping us 还是helping others is helping ourselves?

问题描述:

helping others is helping us 还是helping others is helping ourselves?
老师讲的是ourselves,但我不理解为什么不能用us,

帮助别人即是帮助(我们自已ourselves)
从语法上看,你说的没错
帮助别人即是帮助(我们us)
但从习言习惯上来看就不对.