他们当时可能不知道计划有变动。
They might not have known about the change in plans.
▼点击显示答案
might英 /maɪt/|美 /maɪt/
not英 /nɒt/|美 /nɑt/
known英 /nəʊn/|美 /noʊn/
解释
might 情态表可能，not 否定，have known 完成体表过去的认知状态。整体对过去他们是否知道做否定推测。
They might not have known about the change in plans.
might 情态表可能，not 否定，have known 完成体表过去的认知状态。整体对过去他们是否知道做否定推测。