bloodletting as a treatment for [condition]
Bloodletting was once used as a treatment for fever.
放血曾用于治疗发烧。
大屠杀；杀戮
放血疗法；滥杀；放血疗法(旧时用于减少过量血液,中世纪医学四种体液之一)；放血；[医] 放血
滥杀
indiscriminate slaughter
放血疗法(旧时用于减少过量血液,中世纪医学四种体液之一)
formerly used as a treatment to reduce excess blood (one of the four humors of medieval medicine)
In medieval times, doctors often performed bloodletting to treat various illnesses.
在中世纪，医生经常进行放血来治疗各种疾病。
用法提示：名词，指一种古老的医疗方法
The practice of bloodletting was based on the theory of balancing the four humors.
放血疗法基于平衡四种体液的学说。
用法提示：名词，表示一种治疗实践
Bloodletting was once common for fevers, but it is no longer recommended.
放血曾经常用于治疗发烧，但现在已不再推荐。
用法提示：名词，指历史上的医疗手段
Bloodletting was once used as a treatment for fever.
放血曾用于治疗发烧。
The patient underwent bloodletting to balance his humors.
病人接受放血以平衡体液。
The practice of bloodletting dates back to ancient times.
放血的做法可追溯到古代。
grammar · medium
易错句子The doctor bloodletted the patient to reduce fever.
正确表达The doctor performed bloodletting on the patient to reduce fever.
“bloodletting”是名词，不能直接用作动词。应使用“perform bloodletting”等动词短语来表达动作。
grammar · medium
易错句子He had several bloodlettings last year.
正确表达He underwent bloodletting several times last year.
“bloodletting”通常为不可数名词，不应直接加复数。表达次数时需用“several times”等结构。
bleeding指自发性或意外流血，而bloodletting是故意放血治疗。
phlebotomy多指为采集血液样本而进行的静脉穿刺，而bloodletting是古代的一种治疗性放血。
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