stem something (removing stems)
摘掉茎的动作。
She stemmed the strawberries before cooking.
她在烹饪前摘掉了草莓的茎。
起源于；来自；出身于
stemmed — past of stem
阻止；遏制；止住；去梗；去掉…的茎；逆…航行；顶着…前进；（滑雪）犁式制动；犁式转弯；（攀岩）撑壁攀登；劈腿支撑
To be caused or derived; to originate; to descend in a family line.
除去...的茎(或梗)
To remove the stem from.
阻止,遏制(如河流、血液)
To stop, hinder (for instance, a river or blood).
起源于；由...产生
To be caused or derived; to originate.
滑雪时双板分开、尖端内收以减速或转向
To move the feet apart and point the tips of the skis inward in order to slow down the speed or to facilitate a turn.
出身于；是...的后裔
To descend in a family line.
(攀岩时)双脚分开撑在烟囱或内角两侧岩壁
To use a stance with the feet spread apart, bracing them in opposite directions against the two walls of a chimney or dihedral.
使(船)逆...航行；迎着...前进
To direct the stem (of a ship) against; to make headway against.
将(黏土等)捣入炮眼
To ram (clay, etc.) into a blasting hole.
一般现在时
He stems the flow with a cloth.
他用一块布堵住水流。
一般过去时
She stemmed the bleeding quickly.
她迅速止住了血。
现在完成时
They have stemmed the losses this quarter.
他们本季度已经阻止了亏损。
注意：规则动词，过去式和过去分词加-ed。
Her fear of water stems from a childhood accident.
她对水的恐惧源于童年的一次事故。
用法提示：stems from 表示“源于”，主语是抽象事物 fear。
Many of the city's problems stem from poor planning.
这座城市的许多问题源于规划不善。
用法提示：stem from 意为“起因于”，这里用第三人称复数形式。
His interest in music stemmed from listening to his grandfather's records.
他对音乐的兴趣源于听祖父的唱片。
用法提示：stemmed from 是一般过去时，表示“起源于”。
摘掉茎的动作。
She stemmed the strawberries before cooking.
她在烹饪前摘掉了草莓的茎。
阻止或抑制某事物的扩散。
The new policy aims to stem the tide of illegal immigration.
新政策旨在阻止非法移民的浪潮。
最通用的词，语气中性，可替换任何语境下的'stem'（阻止义），但不如'stem'正式。
比'stem'更强调有意识地控制或限制，常用于政策、行为等正式场合。
带有突然阻止或暂停的意味，与'stem'在阻止进程上可互换，但语气更强。
grammar · medium
易错句子The blood stemmed after applying pressure.
正确表达The blood was stemmed after applying pressure.
作为及物动词，'stem' 表示‘阻止、堵住’时需接宾语，因此应使用被动语态或加宾语。
grammar · medium
易错句子He stemmed from the spread of the disease.
正确表达He stemmed the spread of the disease.
'stem from' 表示‘起源于’，而非‘阻止’。表示‘阻止’时，'stem' 是及物动词，直接接宾语。
对应“阻止”义项：vt. 阻止，堵住；反义词为促进
对应“阻止”义项：vt. 阻止，堵住；反义词为鼓励
对应“阻止”义项：vt. 阻止，堵住；反义词为帮助
阻止潮流
The new policies aim to stem the tide of illegal immigration.
新政策旨在阻止非法移民的浪潮。
阻止流动
They built a dam to stem the flow of the river.
他们建了一座大坝来阻止河流的流动。
止血
The doctor applied pressure to stem the bleeding.
医生施加压力以止血。
源自
His success stems from hard work and dedication.
他的成功源自努力工作和奉献。
起源于；来自
His fear of heights stems from a childhood accident.
他对高度的恐惧源于童年的一次事故。
阻止潮流；遏制趋势
The government introduced new policies to stem the tide of emigration.
政府出台了新政策以遏制移民潮。
阻止流动；遏制（人流、资金等）
The security guards tried to stem the flow of fans into the stadium.
保安试图阻止粉丝涌入体育场。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.