A searchlight is a large powerful light that can be turned to shine a long way in any direction.
英漢詞典釋義
n.
探照燈
Big searchlights are searching the sky.巨大的探照燈正搜索著天空。He played a searchlight on an object.他用探照燈照射目標。He was suddenly caught in the full beam of a searchlight.他突然被探照燈照中而暴露無遺。
英英詞典釋義
Noun
1. a light source with reflectors that projects a beam of light in a particular direction