Lilly walked up the three flights of stairs and was greeted at the door by a sweet older woman who was leaning on a crutch.是什么意思_Lilly walked up the three flights of stairs and was greeted at the door by a sweet older woman who was leaning on a crutch.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句