There was dead silence but for a fly beating against the glass.

若没有一只苍蝇在扑打着玻璃，便是一片死寂。

《柯林斯英汉双解大词典》

Sometimes a person fights a battle that has been decided or keeps arguing question that has been settled . We say this is like a beating a dead horse.

有时一个人对抗一个已经决定或已经得到解决的争论问题。我们说，这像是打一匹死马。

youdao

Still dead quiet in the kitchen except for renewed clanking and scraping and the beating mixer again.

厨房里仍然是一片静寂，但很快就再次响起了叮当声、刮擦声以及敲打搅拌器的声音。

youdao

We say this is like beating a dead horse.

VOA: special.2009.07.12

However, it also managed to chart very nicely thank you very much on its launch week in the UK even beating off Dead Space 3 for the top spot ( Metacritic score of 78).

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Most organs are donated from a patient who has been declared brain stem dead, but whose heart is still beating.

BBC: New powers call for donor cards

The long-term hope is to treat patients with some sort of stem cell that could turn into beating heart muscle and replace dead cardiac tissue with fully functioning new cells.

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