我要是早知道车堵成这样，就会走另一条路了。
Had I known about the traffic jam, I would have taken a different route.
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had英 /hæd/|美 /hæd/
known英 /nəʊn/|美 /noʊn/
would英 /wʊd/|美 /wʊd/
解释
'Had I known...' 是 'If I had known...' 的倒装省略形式：had 提前至句首、主语 I 后移、省略 if。主句 'I would have taken' 表达与 past 相反的假设结果。
Had I known about the traffic jam, I would have taken a different route.
'Had I known...' 是 'If I had known...' 的倒装省略形式：had 提前至句首、主语 I 后移、省略 if。主句 'I would have taken' 表达与 past 相反的假设结果。