You first reward a hop, then a bigger hop, then an even bigger hop.

你先奖励小进步，然后是大一点的进步，接着是更大的进步。

youdao

You first reward a hop, then a bigger hop, then an even bigger hop.

你先奖励小进步，然后是大一点的进步，接着是更大的进步。

youdao