promoting vital essence and blood genernation的用法和樣例：
例句
Essence and blood are mutually generated. 精血互生。
Hemospemia means presence of blood in semen, and it is often regarded as a symptom of little significance by the urologist. 摘要精血癥指精液中含有血液，在臨床上通常并不被認為是個(gè)嚴重的問(wèn)題。
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