steady的副詞形式是什么

　　The political situation is steadily worsening.

　　政治局勢在持續惡化。

　　He looked at her steadily.

　　他凝視著她。

　　The rain was falling steadily.

　　雨不停地下著。

　　The rain fell steadily.

　　雨不緊不慢地下著。

　　His authority is steadily weakening.

　　他的權威日趨減弱。