必然的后果用英语怎么说

必然的后果在英语中可以用 "inevitable consequence" 来表示。"Inevitable" 来源于拉丁语的 "inevitabilis"，意思是 "不可避免的"。"Consequence" 来源于拉丁语的 "consequi"，意思是 "跟随" 或 "后果"。
例句：
The inevitable consequence of smoking is health problems. (吸烟的必然后果是健康问题。)
The lack of preparation is an inevitable consequence of procrastination. (缺乏准备是拖延的必然后果。)
Ignoring the warning signs is an inevitable consequence of being overconfident. (忽视警告信号是过于自信的必然后果。)