which 在这里指代的是什么?还原后in 在什么位置?
Water gets into a fish's body through osmosis,the process in which water diffuses from a higher to a lower concentration
改成 the process that water diffuses from a higher to a lower concentration 是否可以?
吧in去掉是否可以?
in 放到最后 就可用that了吗 把in放到哪呢 他不是和process一起的吗？