This corresponds to entering the blank cell from the above-left.

这就相当于从左上侧进入空白单元格。

youdao

A blank cell: the element in the cell to the left is reused as-is.

空白单元格：左侧单元格中的元素原样重用。

youdao

A blank cell: the element to the left is picked up by the new type unchanged.

空白单元：左边的元素是未改变的新类型。

youdao

Embryonic stem cells are "blank" or undifferentiated cells that can develop into any type of cell in the body.

CNN: NIH announces owners of stem cells