n.退潮；衰落

vi.落潮；衰退

They started sailing on the ebb. 他們于退潮時出航了。

But the moments will never ebb away. 但那些瞬間永遠不會退潮。

Private and public virtues were at the lowest ebb. 公德與私德均在衰落之中。

Manufacturing business is now at a low ebb. 制造業(yè)現(xiàn)正處于衰落中。

Fishing boats were standing down with the ebb. 漁船趁著落潮出航。

We dropped her astern on the end of a seven-inch manilla,and she laid comfortably on the ebb tide. 我們丟給了她船尾的一條七尺長的繩子，讓她舒適地感受落潮的律動。

Brain is not used well, be about to ebb or go slant. 腦子不好好用，就要衰退或走偏。