核心问题
For one thing, two thirds of the earth's surface is water, although this does provide a lot of food in the form of fish. two thirds 为复数，为什么谓语动词用单数呢？
two thirds 为复数,为什么谓语动词用单数呢?
词典解答
见 two thirds is/are。
For one thing, two thirds of the earth's surface is water, although this does provide a lot of food in the form of fish. two thirds 为复数，为什么谓语动词用单数呢？
two thirds 为复数,为什么谓语动词用单数呢?
见 two thirds is/are。