克拉拉紧紧拉着孩子们，但迈出的每一步都比前一步稳。

Clara held on tight to the children, but with every new step she became more firm.

youdao

这把我的手紧紧拉着的小小歌手。

In this small singer holding onto my hand.

youdao

你还紧紧拉着我的手不放，我的手好痛啊。

You still tightly pulling my hand not to put, my hand hurts.

youdao

One of the first steps in that healing is that fibroblasts like this cell crawl into the space that's created by the wound and they grab a hold of both sides of the wound and contract and try to pull it together.

愈合的第一步是,成纤维细胞向,损伤的创口爬行,紧紧地抓住创口的两侧,通过收缩回拉 试着使创口合拢

耶鲁公开课 - 生物医学工程探索课程节选