You can imagine he was terribly upset.

　　你能想像他有多苦惱。

　　I can't imagine life without the children now.

　　我現在無法設想沒有了孩子們的生活。

　　I would imagine the job will take about two days.

　　我猜想這工作大概需要兩天左右的時間吧。

　　Imagine our surprise when he walked into the room!

　　你想象一下，他走進房間時，我們多么驚奇！