她一定是忘了我们的约见——都三点半了还没打电话来。
She must have forgotten our appointment—it's already three thirty and she hasn't called.
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must英 /mʌst/|美 /mʌst/
forgotten英 /fəˈɡɒtən/|美 /fərˈɡɑtən/
解释
must have 是对过去事件的肯定推测，forgotten 是 forget 的过去分词，整句表达根据线索「她三点半还没来」推断「她一定忘了」
She must have forgotten our appointment—it's already three thirty and she hasn't called.
must have 是对过去事件的肯定推测，forgotten 是 forget 的过去分词，整句表达根据线索「她三点半还没来」推断「她一定忘了」