我和儿子从没有分开过一、两个小时。

I had not been separated from my son for longer than a couple of hours.

youdao

实际上，两位艺术家从来都没有分开过。

The two artists have in fact never worked separately.

youdao

神：我们从没有分开过。

God: There is no separation.

youdao

We talked about the cell membrane, the plasma membrane separating the inside form the outside.

我们讲过细胞膜,这种质膜将细胞内外区分开

耶鲁公开课 - 生物医学工程探索课程节选