fatigue

• 名词，指因体力或脑力过度消耗、紧张、疾病或压力而引起的极度疲劳、虚弱或精力耗竭的状态。

A noun referring to a state of extreme physical or mental tiredness, exhaustion, or weariness resulting from exertion, illness, or stress.

不可数

1. Physical or mental exhaustionB1formalmedical

   Extreme tiredness resulting from mental or physical exertion or illness.

   疲劳

   • Chronic fatigue can be a symptom of several medical conditions.
   • After the long hike, she was overcome with fatigue.
   • Mental fatigue often impairs concentration and decision-making.

   同义词debilityenervationexhaustionfaintnesslassitudelethargyprostrationtirednessweaknessweariness

   反义词alertnessenergyfreshnessvigorvitality

2. Material weaknessC1formaltechnical

   Weakness in materials, especially metals, caused by repeated stress or strain.

   材料疲劳

   • The bridge collapsed due to metal fatigue in the support beams.
   • Engineers test aircraft parts for signs of fatigue.
   • Repeated bending can cause fatigue in the wire.

3. Military work uniformB2formal

   The everyday uniform worn by soldiers for work or field duties.

   工作服

   • The soldiers were dressed in their combat fatigues.
   • He wore his fatigue uniform to the training exercise.
   • Fatigues are designed for durability and comfort in the field.

• 动词，指使人极度疲劳或耗尽精力，也指材料在反复受力下逐渐弱化。

A verb used to indicate the act of causing someone to become extremely tired or exhausted, or to weaken a material through repeated stress.

1. Cause tirednessB2formal

   To make someone extremely tired, either physically or mentally.

   使疲劳

   • The long journey fatigued the travelers.
   • Repetitive tasks can fatigue the mind quickly.
   • The intense workout fatigued his muscles.

   同义词drainenervateexhaustjadetaxtirewear outweary

   反义词energizeenliveninvigoraterechargerefreshrejuvenaterevitalizestimulate

2. Weaken materialC1formaltechnical

   To cause a material to become weak or fail due to repeated stress or use.

   使材料疲劳

   • Constant vibration can fatigue the metal components.
   • The bridge was fatigued by years of heavy traffic.
   • Engineers test how much stress a material can withstand before it fatigues.

   同义词weaken