英语脑筋急转弯 | 去掉全部还留下一些

What is it that when you take away the whole, you still have some left over; and that you can take away some and still have the whole left?
什么东西如果你去掉全部（whole）后，依然还有一些（some）留下；同如果你去掉一些（some）后，仍然还有全部（whole）剩下？

Answer
答案

Wholesome!
英语单词 wholesome ！