Definition
to need to reconsider a situation or assumption due to being incorrect.
別傻人做夢了
If he thinks he can win the race without training, he has another think coming.
如果他認為不訓練就能贏得比賽，那他就大錯特錯了。
She thought she could pass the exam without studying, but she has another think coming.
她以為不學習就能通過考試，但她大錯特錯了。
If you think we're going to let you do all the work by yourself, you've got another think coming.
如果你認為我們會讓你一個人完成所有工作，那你就大錯特錯了。