be in traction
常用于骨折或脊柱损伤的牵引治疗，表示一种持续固定的状态。
After breaking his leg, the patient was in traction for a month.
腿部骨折后，这位病人接受了一个月的牵引治疗。
进展；势头；关注度；（骨折等的）牵引（疗法）；牵引；牵引力；被牵引状态；（尤指电力）机车（总称）；用动力沿表面拉动某物的行为。
The grip or friction between a moving object and the surface it moves on, such as between a vehicle's tires and the road.
用动力沿表面拉动某物的行为。
The act of pulling something along a surface using motive power.
物体与移动表面之间的摩擦力(如轮胎与路面)
the friction between a body and the surface on which it moves (as between an automobile tire and the road)
被如此拉动的状态。
The condition of being so pulled.
(骨科)为缓解压力或对齐骨/肢体而进行的牵引
(orthopedics) the act of pulling on a bone or limb (as in a fracture) to relieve pressure or align parts in a special way during healing
抓地力；附着力。
Grip.
发动机或动物的牵引力。
The pulling power of an engine or animal.
车轮等在表面上的附着摩擦力。
The adhesive friction of a wheel etc on a surface.
朝着目标取得的进展或势头,尤指获得支持、认可或欢迎。
Progress in or momentum toward achieving a goal, especially in gaining support, recognition, or popularity.
机械施加的持续牵引,尤指对肢体的牵引。
A mechanically applied sustained pull, especially to a limb.
铁路机车的总称,尤指电力机车。
Collectively, the locomotives of a railroad, especially electric locomotives.
The heavy rain made the roads slippery, so drivers had to slow down to keep their tires from losing traction.
大雨使道路湿滑，司机们不得不减速，以免轮胎失去抓地力。
用法提示：此句中 traction 是（不可数）名词，表示轮胎与路面之间的摩擦力/抓地力。
AI contextual example
These climbing shoes have a soft rubber sole that provides excellent traction on wet rock.
这款攀岩鞋的软橡胶鞋底能在湿滑的岩石上提供出色的抓地力。
用法提示：此句中 traction 是（不可数）名词，表示鞋底与岩石表面间的附着力/抓地力。
AI contextual example
The bus slowed down because the snow and ice on the road had reduced the tires' traction.
公交车减速了，因为路上的积雪和冰层降低了轮胎的抓地力。
用法提示：此句中 traction 是（不可数）名词，表示轮胎与积雪/冰面之间的摩擦力/抓地力。
AI contextual example
常用于骨折或脊柱损伤的牵引治疗，表示一种持续固定的状态。
After breaking his leg, the patient was in traction for a month.
腿部骨折后，这位病人接受了一个月的牵引治疗。
These winter tyres provide excellent traction on ice and snow.
这些冬季轮胎在冰雪路面上提供极佳的抓地力。
这是医学上的用法，指用拉力拉伸骨骼或肢体以复位或减压。
The surgeon applied traction to the fractured femur to align the bone.
外科医生对骨折的股骨进行牵引，以对齐骨骼。
日常最常用，尤其指轮胎、鞋底在路面不打滑的附着力；与traction在“抓地”义上常可互换，但traction还指医学牵引。
物理学术语，指两接触面间阻碍相对运动的力，含义比traction广；traction特指对行进有用的附着力。
较正式/书面，强调能抓住或踩住的表面给与的抓力，常用于岩石、路面等；口语中少用。
偏物理/材料学，指两种表面相互黏着的性质；不侧重行进中保持不打滑的动态抓地。
grammar · medium
易错句子The tires couldn't traction on the wet road.
正确表达The tires couldn't get traction on the wet road.
traction 是名词，不是动词；表示‘获得抓地力’需用 get/gain traction。
grammar · medium
易错句子The doctor applied a traction to his leg.
正确表达The doctor applied traction to his leg.
表示‘牵引治疗’时 traction 为不可数名词，前不加 a。
grammar · medium
易错句子The new policy didn't gain much attraction among employees.
正确表达The new policy didn't gain much traction among employees.
表达‘获得支持/势头’应用 gain traction；attraction 指‘吸引力、景点’，语义不符。
针对‘抓地力/摩擦力’义项（如轮胎与路面间）：指表面光滑、摩擦小，与抓地力相反；不用于‘骨科牵引’义项。
针对‘牵引（治疗）’义项：指施加压力使骨或肢体相互靠拢，与牵拉方向相反；不用于‘摩擦力’义项。
traction 指摩擦力/抓地力或骨科牵引；attraction 指把物体拉近的力、吸引力或旅游景点。二者拼写和读音相近，但 attraction 不能表示‘抓地力’。
traction 指轮胎等与地面之间能带动前进的抓地力；friction 是接触面之间的阻力，还表示‘摩擦’或‘不和’，不强调‘带动’。
traction 是抽象名词‘牵引；抓地力’；tractor 是可数名词，指做牵引工作的机器——不能把 tractor 当作‘牵引力’来用。
良好的抓地力
These tires provide good traction on wet roads.
这些轮胎在湿滑路面上抓地力很好。
抓地力差
The icy pavement caused poor traction for cyclists.
结冰的路面使骑车人的抓地力很差。
失去抓地力；打滑
The car lost traction on the slippery curve.
汽车在湿滑的弯道上打滑了。
（骨折等）接受牵引治疗
After the accident, she was in traction for a month.
事故后，她接受了一个月的牵引治疗。
牵引力控制系统
The car's traction control helps prevent the wheels from slipping.
汽车的牵引力控制系统有助于防止车轮打滑。
action
action
action
action
action
tion
词根 tract (拉) + 后缀 -ion (表示行为/结果)
前缀 at- (朝向) + 词根 tract (拉)
前缀 ex- (向外) + 词根 tract (拉)
前缀 dis- (分开) + 词根 tract (拉)
词根 tract (拉) + 后缀 -or (表示物/机器)
常与 traction 搭配，指轮胎与路面之间的摩擦力。
traction 常描述物体在路面等表面移动时的摩擦力。
冰面会使牵引力降低，是讨论 traction 丢失的常见场景。
骨科 traction 用于治疗骨折，缓解压力并帮助对齐。
牵引治疗涉及对骨骼或肢体施加拉力。
获得支持；开始取得成功
The campaign is slowly gaining traction across the country.
这项运动正在全国范围内逐渐获得支持。
失去势头；失去支持
The proposal lost traction after the budget was cut.
预算削减后，这项提议失去了势头。
逐步打开局面；取得稳定进展
The company is building traction with small business clients.
该公司正在逐步赢得小企业客户的认可。
Dictionary facts from ECDICT, WIKTIONARY.
获得抓地力
The wheels struggled to gain traction on the muddy ground.
车轮在泥地上很难获得抓地力。