假如当时房租那么贵，他们就不会搬到城里来了。
They wouldn't have moved to the city if the rent had been so high.
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wouldn't英 /ˈwʊdnt/|美 /ˈwʊdnt/
moved英 /muːvd/|美 /muvd/
解释
wouldn't have moved 是 would not have + 过去分词，表对过去行为的否定假设——他们实际上搬了，但假设没搬。
They wouldn't have moved to the city if the rent had been so high.
wouldn't have moved 是 would not have + 过去分词，表对过去行为的否定假设——他们实际上搬了，但假设没搬。