The earth's gravity slows the moon's rotation, matching it to the speed of its orbit.
地球引力减缓了月球的自转速度，使之与其轨道的速度相匹配。
2
Speed: startup and parsing speed is not as good as a straightforward matching algorithm.
速度：启动和解析速度不如简单的匹配算法。
3
They began to jog up the beach, matching their speed to Mother, who was limping a little from having skinned one knee and twisted the other when she fell.