| 单词 | stem |
| 释义 | stem nounadjective | verb + stem | stem + verb | preposition | phrases adjective➤long, tall长茎；高茎▸➤short短茎▸➤thick粗茎▸➤slender, thin细长的茎；细茎➤main主茎▸➤flexible, strong柔韧的茎；强壮的茎▸➤brittle, weak易断的茎；柔弱的茎➤flowering, woody花枝；木质茎➤flower, plant花茎；植株茎▸➤iris, rose, etc.鸢尾花茎、玫瑰花茎等verb + stem➤break, cut, cut back, prune, prune back, remove, shorten, trim折断茎干；修剪茎干；剪除茎干；剪短茎干◆when the bush has finished flowering, cut back all the stems.等这丛灌木开完花后，把所有的茎干都修剪一下。stem + verb➤break茎干折断preposition➤on a/the stem在茎干上◆there are several leaves on each stem.每一根茎上都有几片叶子。phrases➤the base of the stem茎的基部◆cut half an inch off the base of each stem.从每根茎的基部剪去半英寸。stem(-mm-) [transitive] to stop sth from spreading or increasing further, especially the flow of sth阻止；封堵；遏止◆the cut was bandaged to stem the bleeding.为伤口进行了包扎止血。◆the government had failed to stem the tide of factory closures.政府没能控制住工厂纷纷倒闭的势头。stem¹/stem ||; stɛm/noun[c] 1. the main long thin part of a plant above the ground from which the leaves or flowers grow 树干；茎；梗 ☞pictures at flower and on page c2 见flower及c2页插图 2. (grammar语法) the main part of a word onto which other parts are added 词干: ◇‘writ-’ is the stem of the words ‘write’, ‘writing’, ‘written’ and ‘writer’. writ-是write、writing、written和writer的词干。 stem²/stem ||; stɛm/verb [t] (stemming;stemmed) to stop sth that is increasing or spreading 阻止（某物增加或蔓延） stem from sth (not used in the continuous tenses 不用于进行时) to be the result of sth 是…的结果；由…导致或引起 although this verb is not used in the continuous tenses, it is common to see the present participle (= -ing form) he was treated for depression stemming from his domestic and business difficulties. 虽然这个动词不用于进行时，但它的现在分词还是常见：he was treated for depression stemming from his domestic and business difficulties.他在接受治疗，因为他在家庭生活及生意上遇到许多难题，得了抑郁症。☞ stem¹☞ stem² |
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