There are trees on either side of the river与There are trees on each side of the river

问题描述:

There are trees on either side of the river与There are trees on each side of the river
区别

中文意思呢,就是楼上的 either:或者,这里具体的意思是 任意一侧 each:每个,这里具体的意思是 两侧