他进公寓走的那个门可以直接去到地下室，然后他就呆在那里，除非他去了学校，或者按他爸爸的吩咐去打磨大厅的黑色大理石。

He entered the building through a gate that led right into its bowels, and that's where he remained, unless he was at school, or was ordered by his Pa to polish the black marble in the lobby.

youdao

19世纪后期上海出现的石库门，是最具上海特色的居民住宅。

Shikumen (literally"stone gate") is an architectural style that first appeared in late nineteenth century. Shikumen-style buildings are characteristic residential buildings of Shanghai.

youdao

这些房子又叫石库门。

These houses, known as Shikumen.

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