The gaslights in the passage would be on, turned low.走廊里的煤气灯应该是开着的，调得比较暗。Gaslights cast a shadowy glow.煤气灯投下一片片幽暗的光....

n.煤气灯光，煤气灯( gaslight的名词复数 )...

gaslights的音标：...