N-SING 丧钟;导致失败(或终结、毁灭)的原因 If you say that something sounds the death knell for a particular person or thing, you mean it will cause that person or thing to fail, end, or cease to exist. 丧钟;导致失败(或终结、毁灭)的原因
The tax increase sounded the death knell for the business. [+ for]