searchlight /ˈsɜːtʃˌlaɪt/

• 1. 

  N-COUNT A searchlight is a large powerful light that can be turned to shine a long way in any direction. 探照灯

  例：

  Helicopters threw searchlights over the meadows and the lake.

  直升飞机将探照灯光投射在草地和湖上。