Two weeks later, when the moon is full, it has moved round to the opposite side of the earth so that the earth is between them and once again they are pulling on the ocean, this time in opposite directions but along the same axis.

• 两个星期之后，也就是在满月时，月球转到地球的另一侧，地球则处于月球与太阳之间，他们再次对海洋产生引力，这时是方向相反，轴心相同。