他上上下下仔细地打量着这个陌生人。

He looked at the stranger up and down.

他上上下下打量着这个穷苦的年轻人。

He looked the poor young man up and down.

我们好不容易乘上了车，一路上上上下下挤来挤去，好不容易到了解放公园。

We finally got on a ride along the way to Jiqu squeeze up and down, finally to the liberation of parks.

他说：“一个小男生上上下下打量了我一番之后，向我伸出了大拇指。”

One little boy looked me up and down and gave me the thumbs-up sign.