To describe a crime or wrongdoing so heinous that even a thousand deaths would be an insufficient or light punishment; indicating extreme culpability.
他在试验中篡改数据，造成了严重的后果，这种学术不端行为简直是万死犹轻。
He tampered with data in the experiment, causing severe consequences; such academic misconduct is a grave offense for which even countless deaths would be considered too light a punishment.
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