有意思.
very 有意思.
very very 有意思.
very very very 有意思.
I never understand what the 灌水 means.
Sometimes, it is just because you are too superficial you cannot see the
meaning of some papers now. These papers are building a platform for a frog-
leap in the future by talented people. Then, a new level will be built based
on what you mean 灌水 and prepared for a future jump.