Reading is easy, to think is difficult, but the lack of a, is all useless.
读书是易事，思索是难事，但两者缺一，便全无用处。——富兰克林。
youdao
We are reading a book, because it is useless.
我们在阅读一本书，因为它毫无用处。
应用推荐
模块上移
模块下移
不移动