步驟是可數(shù)名詞嗎

　　I hopped down three steps.

　　我單腳跳下3級(jí)臺(tái)階。

　　She walked on a few steps.

　　她繼續(xù)走了幾步。

　　She walked daintily down the steps.

　　她優(yōu)雅輕盈地走下臺(tái)階。

　　She climbed up the flight of steps.

　　她爬上了那段臺(tái)階。

　　The stone steps were worn and broken.

　　這些石頭臺(tái)階被磨平破裂了。