如果她没赶掉那趟车，就能准时到了。
If she hadn't missed the bus, she would have arrived on time.
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hadn't英 /ˈhædnt/|美 /ˈhædnt/
missed英 /mɪst/|美 /mɪst/
解释
hadn't missed 是过去完成时的否定缩略形式，用在 if 条件句中表示对过去情况的否定假设（实际上她误了车）。missed 是 miss 的过去分词，与 had 构成过去完成时。与主句的 would have arrived 搭配构成第三类条件句。
If she hadn't missed the bus, she would have arrived on time.
hadn't missed 是过去完成时的否定缩略形式，用在 if 条件句中表示对过去情况的否定假设（实际上她误了车）。missed 是 miss 的过去分词，与 had 构成过去完成时。与主句的 would have arrived 搭配构成第三类条件句。