Definition
The phase of the tide when it recedes from the shore.
退潮
We should leave the beach when the ebb begins.
我们应该在退潮开始时离开海滩。
The fishermen used the ebb to mend their nets.
渔民利用退潮时修补他们的渔网。
During the ebb, the shoreline extends out hundreds of meters.
在退潮期间，海岸线向外延伸数百米。