most frequent water level

例句：

1. 1.The reservoir is at its most frequent water level.
   水库处于其最频繁的水位。
2. 2.The floodwaters reached the highest level of their most frequent water level.
   洪水水位达到了它们最频繁水位的最高点。
3. 3.The river's flow has been at its most frequent water level for weeks.
   这条河流的流量已经处于它最频繁水位的几周了。