“从重处罚”常见的英文表达是 “impose a heavier punishment” 或 “give a heavier sentence”。
impose a heavier punishment：侧重于表达施加、执行更严厉的惩处措施，强调执法层面的动作。例如：The court will impose a heavier punishment on those who commit serious crimes.（法院将对犯下严重罪行的人从重处罚。 ）
give a heavier sentence：更聚焦于司法判决环节，突出给予更重的刑期或判决结果。例如：Due to the defendant's previous criminal record, the judge decided to give him a heavier sentence.（鉴于被告有前科，法官决定对他从重处罚。 ）