quite another thing

基本解釋

That's quite another thing.
那完全是另外一回事。
edu.sina.com.cn
It's one thing to compile and install something, and quite another thing to make sure that the new software actually works.
編譯和安裝是一回事，而確信新軟件工作正常完全是另一回事。
But indeed this is quite another thing.
不過，這次確實是另一碼事。
3g.en8848.com.cn

It is quite another thing to state that there is no difference between Romney and Obama.
FORBES: No Difference Between Romney and Obama? Really?
Then you spend a little more time with it, you start actually trying to do things on it, and it becomes quite another thing entirely.
FORBES: Why I Might Drop the iPhone 5 for the Galaxy Note II, and you should too.
While one might make a good sounding case for a different tax system, it is quite another thing to come up with a scheme that will actually gain political momentum and can be affected.
FORBES: A Petition To Get The IRS Out Of Defining Family