要是我当时更用功学习的话，就能通过那场考试了。
If I had studied harder, I would have passed the exam.
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If英 /ɪf/|美 /ɪf/
had英 /hæd/|美 /hæd/
studied英 /ˈstʌdɪd/|美 /ˈstʌdɪd/
would英 /wʊd/|美 /wʊd/
passed英 /pɑːst/|美 /pæst/
解释
if + had + studied 构成过去完成条件从句，would have + passed 构成主句，整体表达与过去事实相反（实际未用功、未通过）的假设和后悔。
If I had studied harder, I would have passed the exam.
if + had + studied 构成过去完成条件从句，would have + passed 构成主句，整体表达与过去事实相反（实际未用功、未通过）的假设和后悔。