他要是当初听医生的话，早就康复了。
If he had listened to the doctor, he would have recovered sooner.
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If英 /ɪf/|美 /ɪf/
had英 /hæd/|美 /hæd/
listened英 /ˈlɪsənd/|美 /ˈlɪsənd/
would英 /wʊd/|美 /wʊd/
recovered英 /rɪˈkʌvəd/|美 /rɪˈkʌvərd/
解释
if + had + listened 构成过去完成条件从句，would have + recovered 构成主句，句子表达对过去不遵医嘱导致延误康复的遗憾。
If he had listened to the doctor, he would have recovered sooner.
if + had + listened 构成过去完成条件从句，would have + recovered 构成主句，句子表达对过去不遵医嘱导致延误康复的遗憾。