death knell
短语n. 丧钟；导致失败（或终结、毁灭）的原因
发音
AU
/dɛθ nɛl/
词形变化
death knells
复数
别名
death-knell
释义与例句
n.
-
1.
The tolling of a bell announcing death.
丧钟
-
2.
A marker, sign or omen foretelling the imminent end, death or destruction of something.
引申义