phrase
B1
used to add information that shows that what you have just said is true
You can't expect to be perfect - after all, it was only your first lesson.
C1
used to say that something happened or was true although you did not expect it to happen or be true
Helen couldn't come to the party after all.
translation
used to add information that shows that what you have just said is true; used to say that something happened or was true although you did not expect it to happen or be true