Ⅰ动词 (提脚向前走; 跨) step; stride; pass 短语和例子 迈出重要一步 take an important step forward; 迈过门坎 stride [step] over the thresholdⅡ形容词 (老) old 短语和例子 老迈 advanced in years; 年迈 aged; oldⅢ名词 (英里) mile 短语和例子 这种赛车时速为二百迈。 this sports model makes two hundred miles an hour