retroreflective / ˌrɛ troʊ rɪˈflɛk tɪv /

🎓大学词汇反射性反射性的反射式的反射式

retroreflective 的定义

adj. 形容词 adjective
  1. of or relating to a surface, material, or device that reflects light or other radiation back to its source; reflective.