If no whole cell is selected, the text from the cursor to the end of the current sentence is deleted. If the cursor is at the end of a cell, and no whole cell is selected, the contents of the next cell are deleted.
如果没有选定整个单元格，则删除从光标所在位置到当前句子结尾处的文本。如果光标在单元格结尾处，并且没有选定整个单元格，则删除下一个单元格的内容。