如果非让我猜的话，我猜大概要花三个小时。
I would imagine it takes about three hours.
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would英 /wʊd/|美 /wʊd/
imagine英 /ɪˈmædʒɪn/|美 /ɪˈmædʒɪn/
解释
would imagine 用于委婉地推测，比 I imagine 更不确定、更礼貌
I would imagine it takes about three hours.
would imagine 用于委婉地推测，比 I imagine 更不确定、更礼貌