1825, "underground passage" (for water pipes or pedestrians, later for electrical wires), from sub- + way (n.). The sense of "underground railway in a city" is first recorded 1892, in reference to London.
权威例句
1. The majority of us feel worried if we walk through a subway.
大多数人在走地下通道时都感到害怕。
2. A 15-year-old girl was attacked at knifepoint in a subway.
一名15岁的女孩在地铁里遭持刀袭击。
3. Steps lead down to the subway from the upstream side.