Stem
[ stɛm ]
第2级
其它 Other
n. （花草的）茎;词干;（高脚酒杯的）脚;烟斗柄;
vt. 遏制[阻止]（液体的流动等）;阻止;封堵;遏止;
📝 例句
Our hopes stem from our previous achievements.
我们的希望源于我们从前的成就。
The connecting rod may drive a valve stem directly.
连杆可以直接带动阀门的把柄。
When you swim up stream, you have to stem the current.
当你往上游游的时候,你得顶着水流而上。
I couldn't stem the bleeding.
我无法止住流血。
In tubers from such potatoes stem mottle symptoms are rarely observed.
由这类马玲薯产生的块茎中茎斑驳症状不易观察到。
🌱 联想助记
【串】科学家制订了研究茎(stem)的步骤(step),确定了每个项月(item),决不中途停止(stop)
【记】※ steam-蒸汽,stem-茎:蒸汽从树茎中冒出来
※ stem-茎,step-台阶:竹的主茎节巴多,好象层层的台阶
※ st-拼音“石头”,em-拼音“恶魔”:石头在恶魔头上种了一根茎(恶魔发现石头长出了茎)
✅ 同义词
🔤 词根
📖 牛津释义
stem
n
1
(a) main central part of a plant, bush or tree coming up from the roots, from which the leaves or flowers grow （花草的）茎; （树木的）干. =>illus at fungus 见 fungus 插图.
(b) part of a leaf, flower or fruit that joins it to the main stalk or twig （叶片、 花朵或果实的）梗, 柄. =>illus at App 1 见附录1插图, page ii.
2 thin stem-shaped part of sth, esp the narrow part of a wineglass between the base and the bowl or the part of a tobacco pipe between the mouthpiece and the bowl 茎状部分; （尤指）高脚酒杯的颈, 烟斗柄.
3 (grammar) root or main part of a noun or verb from which other parts or words are made, eg by altering the endings 词干.
4 (fml 文) main line of descent of a family 血统.
5 (idm 习语) from ,stem to `stern from the front to the back (esp of a ship) 从头到尾; （尤指）从船首到船尾
The liner has been refitted from stem to stern. 那艘班轮已经全面整修. stem, v (-mm-) (phr v) stem from sth arise from sth; have sth as its origin or cause 来自或起源於某事物; 由某事物造成
discontent stemming from low pay and poor working conditions 因工资低、 工作条件差而产生的不满情绪.
stem v (-mm-) [Tn]
restrain or stop (the flow of liquid, etc) 遏制, 阻止（液体流动等）
bandage a cut to stem the bleeding 用 带包扎伤口止血
stem the flow of water from a burst pipe 止住破裂的水管中流出的水
(fig 比喻) The government are unable to stem the tide of popular indignation. 政府压制不住公愤.
🎯 考研助记
音：抬木，抬轿子的木头，是根木桩子
🔁 扩展释义
*[stem]n. 茎, 干, 柄, 船首, 血统, 堵塞物vt. 摘掉茎, 装柄于, 阻止, 堵住, 逆行vi. 堵住, 逆行【化】 敌稗【医】 茎, 干相关词组: from stem to stern
🏥 医学释义
柄，杆，把
🌿 同词根单词
📖 同为「高中」词汇
查看全部高中词汇 ›🗣️ 情景例句
Sorry, but he is out at the moment.
抱歉，他现在出去了？
Love and poverty are hard to hide.
爱和穷难隐瞒。
She had told him to come straight in if ever she failed to open the door and to leave the bread on the kitchen table.
她曾告诉过面包师，如果她不去开门，他可直接进门，把面包放在厨房的桌上。