短語(yǔ)詞組短語(yǔ)graceful downgrade 舒緩降級(jí)downgrade e 降密;降級(jí);降低downgrade welding 下坡焊Downgrade Description 降格描寫(xiě)downgrade ? 使降職on the downgrade 在走下坡路；衰落；每況愈下 返回 downgrade