deep in thought 沉思，深思

You look deep in thought.

你看起来在想事情啊。

After Mary left, Mike was deep in thought the entire day.

玛丽离开后，麦克整天都在沉思。

老师微信：hahayifu，也就是“哈哈衣服”4个字的拼音

老师微博：口语老师Yuyu