一个英文单词，每次去掉一个字母，又还是一个正确的英文单词，这是什么词？

What is the longest English word, that remains a valid English word, as you remove its letters one at a time?

youdao

一个英文单词，每次去掉一个字母，又还是一个正确的英文单词，这是什么词？

What is the longest English word, that remains a valid English word, as you remove its letters one at a time?

youdao