The laughter is thus alarming because it immediately reminds him of his obvious failure to do anything whatsoever about the woman who had presumably drowned years before.
الضحكة بالتالي تنذر بالخطر كونها تذكره فورا بفشله الواضح في أن يفعل شيئا حيال المرأة التي غرقت قبل سنوات.