ㄈㄢˇfǎnㄍㄨㄤguāngㄐㄧㄥˋjìng

  1. 使聚集一點光學儀器複式顯微鏡一個四面回轉圓形使聚集一點

  2. 日常鏡子使回轉

reflector (typically concave, as in a torch)​, mirror (typically plane or convex)​
réflecteur, miroir reflétant