although和eventhough的区别？

although是“虽然，尽管”，而even though这个词组指“即使，虽然”

意思看上去差不多，但后者语气更强，有强调之意，而although只是一般的转折
下面是朗文词典给出的解释和例句：

even though
used to emphasize that something is true although something else has happened or is true用于强调虽然某件事已发生或是真实的，另一件事也是真实的

Even though he's 24 now, he's still like a little child.
I can still remember, even though it was so long ago.

although
used to introduce a statement that makes your main statement seem surprising or unlikely用于引出一个分句，使主句显得更令人惊讶或不可能。

Although in poor health, she continued to carry out her duties.
Although I can't help admiring the man's courage, I do not approve of his methods.

顺便提一句，although=though（两者没有区别，很多人误以为有区别），但even though是固定词组，不能想当然地换成even although