Translation of "Ebb" in Japanese

Every tide has its ebb.

潮の全てはひく。

The tide is on the ebb.

潮が引いている。

His popularity was at a low ebb.

彼の人気は衰えていた。

Relations between us seem to be on the ebb.

我々の関係は徐々に冷えていくようだ。

Sarah was at a low ebb for several weeks after her mother died.

サラは母親の死後数週間元気がなかった。