This sobering truth can serve as a warning for our lives.
这个严肃的事实对我们的生活而言，正是个警告。
Organizers argued that "sometimes a negative example can serve as a warning".
颁奖组织者说： “有时，反面典型会起到警示作用。”
The original meaning is that punishment for someone can serve as a warning to others. But people now use the idiom to indicate that premature actions which put the enemy on guard.
原先的意思是指对某人的惩罚成了对其他人的警告，但现在人们用它来比喻不成熟的行为会使敌人产生戒备。
The displays of art museums serve as a warning of what critical practices can emerge when spontaneous criticism is suppressed.
艺术博物馆的展览提醒我们，当自发的批评被压制时会有什么样的批评行为出现。
The displays of art museums serve as a warning of what critical practices can emerge when spontaneous criticism is suppressed.
艺术博物馆的展览提醒我们，当自发的批评被压制时会有什么样的批评行为出现。
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