The arrival of large supermarkets sounded the death knell of many small local shops.
His manner was so casual when he was sounding the death knell of Tara.
But climate change could nonetheless be the death knell for economic freedom, along with much else.
Mr Johnson urged people to act responsibly: " your mild cough can be someone else's death knell" .
Still, says Shayle Kann at GTM, this will be no death knell; it will simply eliminate some marginal projects.
即便如此，GTM调查机构的Shayle Kann 声称，这也不太阳能 发电的死亡钟声，而仅仅终止一些边际项目。
Or a related article from the journal Cell Death and Differentiation simply called: Phosphatidylserine, a death knell.
Some believe that Japan's return to commercial whale hunting will effectively sound the death knell for the industry.
Railroads gave us faster and more convenient transportation as they simultaneously signaled the death knell of many species of migratory animals as well as served up noise and air pollution.