“低声下气”，汉语成语，字面意思是“lower one's voice and stifle one's anger”，形容说话时态度卑微恭顺的样子。可以用“grovel”表示，意思是 “to behave with too much respect toward someone to show that you are very eager to please them”。

例句：

我强迫自己走进他的办公室，对他低声下气。

I propelled myself straight into his office and grovelled.

低声下气地向我的前任要钱简直是令人尴尬和恼火。

Groveling for dollars from my ex was nothing short of embarrassing and infuriating.