
好词典

源自古英语'stemnian'(阻止),与德语'stemmen'(抵抗)同源,后发展出语言学专用含义。
❶ 在语言学中,指将单词的不同形态还原为其基本形式(词干)的过程,常用于文本处理和信息检索。
“Stemming helps reduce words like 'running' and 'ran' to their base form 'run'.”
(词干提取可将'running'和'ran'等词还原为基本形式'run'。)
“Search engines often use stemming to improve search results.”
(搜索引擎常用词干提取技术改进搜索结果。)
❶ 作为动词时,表示阻止或遏制某事物的扩散或发展,常用于描述控制负面情况。
“The government took measures to stem the spread of misinformation.”
(政府采取措施遏制错误信息的传播。)
“Quick action stemmed the bleeding from the wound.”
(快速行动止住了伤口的出血。)
stemming from — 表示某事物源于或由另一事物引起,用于说明因果关系。
“Her anxiety stems from childhood trauma.”
(她的焦虑源于童年创伤。)