1.
To know something about English is one thing; to know English is quite another.
懂一点英语是一回事；掌握英语完全是另一回事。
2.
But freedom is one thing, advisability quite another.
但自由是一回事，明智则完全是另一回事。
3.
It was quite another story for English farmers.
对英国农民来说,那完全是另一回事了。
4.
"That, sir," answered Mr Smith, "is quite another pair of shoes."
史密斯先生回答说：“先生，那完全是另一回事了。”
5.
He thought his child had meningitis, but the doctor found the illness was quite another thing.
他以为他的孩子得了脑膜炎，但医生说这完全是另一回事。
6.
We thought Mary would pass and John would fail, but contrary to expectation it was the other way round.
我们原以为Mary会及格,john不及格,但结果与预料的相反,完全是另一回事.
7.
"We thought Mary would pass and John would fail, but contrary to expectation it was the other way round."
＂我们原以为玛丽会及格，约翰不及格，但结果与预期的相反，完全是另一回事。＂
8.
But that is a different thing: in fact, the opposite thing.
不过这是另外一回事。 完全不同的一回事，可以说是相反的一回事。
9.
Claiming the need for censorship is one thing , but rationally proving its redeeming values represents a quite different issue.
主张审查制度的必要性是一回事，理智地证明它的可取之处是完全不同的另一回事。
10.
The facts appear to tell a different story.
事实却是另外一回事。
11.
Collecting as a serious hobby is quite different and has many advantages.
作为一种严肃的业余爱好的收藏活动完全是另外一回事，它具有许多益处。
12.
This is far from the truth today.
今天的现实情况，完全不是这么一回事。
13.
Most of us would deny being any of these while awake, but the way people behave as they snooze is an entirely different matter.
我们醒著时，多半会否认有这些特点，但人们睡著时的行为，完全是另外一回事。
14.
Saying is one thing and doing another.
说是一回事，而做又是另外一回事。
15.
It is one thing to speak and another to act.
说是一回事，做又是另外一回事。
16.
It is one thing to learn, and another to teach.
学是一回事，教是另一回事。
17.
Knowledge is one thing, virtue is another;
知识是一回事，美德是另一回事。
18.
Saying is one thing, and doing is another.
说是一回事，做又是另一回事。