reflex

• 形容词，描述对刺激作出的不随意且几乎瞬间的反应。也可指反射性的、本能的或自动发生的。

An adjective describing an involuntary and nearly instantaneous movement in response to a stimulus.

1. Involuntary or automaticB2formal

   Occurring as an automatic response without conscious thought or will.

   反射性的

   • The doctor tested his reflex actions by tapping his knee.
   • Blinking is a reflex response to protect the eyes.
   • His reflex reaction was to pull his hand away from the hot surface.

   同义词automatichabitualinstinctiveinvoluntarymechanicalspontaneousunconscious

   反义词consciousdeliberateintentionalvoluntary

• 对外部刺激作出的自动、本能的、无意识的反应；也指光、声音等的反射现象。

An automatic, instinctive, and unlearned reaction to a stimulus.

1. Automatic physical reactionB2formal

   An automatic, instinctive, and unlearned response to a specific stimulus, often involving the nervous system.

   反射

   • The doctor tapped his knee to test the patellar reflex.
   • Pulling your hand away from a hot stove is a reflex.
   • Blinking when something comes near your eye is a natural reflex.

   同义词automatismreflex action