The structure of the backbone shows, however, that Ambulocetus swam like modern whales by moving the rear portion of its body up and down, even though a fluke was missing.

不过，走鲸的脊椎结构显示，即使没有尾片，它们在水中同样能够像现代鲸鱼那样通过身体后面部分的上下摆动来游动。

youdao

They dug his body up.

他们挖出他的尸体。

youdao

Lie in the prone position, with your hands on the floor and repeatedly press the upper body up and down.

弯下上身，俯卧，手撑地面，重复将上身支起并放下。

youdao

I then took up three pieces of wood from the flooring, and placed his body parts under the room.

VOA: special.2009.05.16

My body dies,but he sort of swoops up my information about my personality and recreates somebody up in heaven with that similar personality.

在我肉体消亡时，将关于我的人格的信息,提取出来在天堂创造了另一个人。

耶鲁公开课 - 死亡课程节选

Here is the cell body up at the top of the diagram here.

图表上部画的是细胞体

耶鲁公开课 - 生物医学工程探索课程节选

The professor also said it would have taken an experienced person an hour to cut the body up but anyone else could have taken up to three hours or more.

BBC: Gemma McCluskie

So the body adds up and the world reminds you of the body's limits, although it can be surprisingly kind.

NPR: Excerpt: 'The Importance of Music to Girls'

OrganOx can keep a liver healthy outside the body for up to 24 hours.

FORBES: New Device Keeps Liver Alive Outside Body