constant

• 形容事物不随时间变化、始终保持不变；也可指持续不断的、连续发生的。

Describes something that does not change or vary; remaining the same over time.

1. UnchangingB1formal

   Something that does not change or vary; remaining the same.

   不变的

   • The temperature remained constant throughout the experiment.
   • She maintained a constant speed on the highway.
   • His constant support helped her through difficult times.

   同义词changelessfixedimmutableinvariableperpetualstablesteadyunalterableunchangingunvarying

   反义词changingfluctuatinginconstantmutableshiftingunstablevariable

2. ContinuousB1formal

   Happening all the time or repeatedly; without interruption.

   持续的

   • The constant noise from the construction site was annoying.
   • He was in constant pain after the surgery.
   • She received constant updates about the project.

   同义词ceaselesscontinualcontinuousendlessincessantnonstopperpetualrelentlessunceasingunremitting

   反义词fitfulintermittentirregularoccasionalsporadic

3. Loyal or faithfulB2formal

   Staying firm in one's support or affection; devoted.

   忠诚的

   • He remained a constant friend throughout the years.
   • Her constant love for her family was evident.
   • The dog was a constant companion to the old man.

   同义词devotedfaithfulloyalsteadfasttruetrustyunwavering

   反义词disloyalfaithlessfickleinconstanttreacherousunfaithful

• 名词，指不变或变化极小的事物，常用于数学、科学或一般语境中，表示固定量或不变的状态。

A noun referring to something that does not change or varies little, often used in mathematics, science, or general contexts to denote a fixed value or unchanging situation.

1. Unchanging valueB2formalscientific

   A value or quantity that does not change in a given context.

   常量

   • The speed of light is a universal constant.
   • In this equation, 'c' represents a constant.
   • Mathematical constants like pi are used in many formulas.

   同义词invariant

   反义词changeablefluctuatingmutablevariable

2. Unchanging situationB2formal

   Something that remains the same over time.

   不变的情况

   • Change is the only constant in life.
   • The one constant in his life was his love for music.
   • In a world of variables, she was his constant.

   同义词anchorcertaintyfixturegivenmainstay

   反义词changefluctuationshiftvariablevariance