He was walking down the road one dusky Friday evening.
在一个昏暗的周五晚上他正沿路走着。
《柯林斯英汉双解大词典》
2
The dusky salamander lives only in slow-moving streams where organic debris settles and accumulates.
灰蝾螈只生活在缓慢流动的溪流中，有机碎片在此沉淀堆积。
3
Therefore, it is probably the increased flow caused by suburban development that is responsible for the dusky salamander's virtual disappearance from New York State.