He could do nothing but grumble over the situation.

他除了埋怨局势之外别无他法。

youdao

If so, they have much to grumble over.

若果真如此，那他们可有的抱怨了。

youdao

But what about instruct, I hear you grumble over your dog-eared copy of "The Grapes of Wrath"?

CNN: Uncovering the secrets of storytelling

There is not much time to celebrate a victory or grumble over a loss because the next game is around the corner.

WSJ: Carlesimo Always Has One Eye on the Clock

If so, they have much to grumble over.

ECONOMIST: Caste in India