她不可能看到那封邮件，她一上午都在开会。
She can't have seen the email—she's been in meetings all morning.
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can't英 /kɑːnt/|美 /kænt/
解释
can't 是 can not 的缩写形式，have seen 为现在完成时。can't have seen 表达对过去情况的否定推测，意为「不可能已经看到」。
She can't have seen the email—she's been in meetings all morning.
can't 是 can not 的缩写形式，have seen 为现在完成时。can't have seen 表达对过去情况的否定推测，意为「不可能已经看到」。