短語詞組短語at the lowest level 在最低水平at its lowest ebb 衰落到極點(diǎn)at their lowest ebb 水位最低點(diǎn)at the lowest 至少;最低at the lowest ebb 衰落到極點(diǎn)at the lowest point 最低點(diǎn)Concrete at the lowest 最低混凝土At Her Lowest Ebb 她處于 返回 at lowest