Good morning! Today, let's look at the idiom "once in a blue moon". It means something that happens very rarely.
For example, My grandparents live in a distant village. We visit them once in a blue moon because it's a long journey.
Now, imagine you have a friend who lives abroad. You only get to see each other maybe once every few years. What idiom can describe how often you meet?
早上好!今天,让我们来看一下成语“千载难逢”。它的意思是发生得非常少的事情。
例如,我的祖父母住在一个遥远的村庄。我们因为路途遥远,所以很少去看望他们。
现在,想象一下你有一个住在国外的朋友。你们可能几年才能见一次面。有什么成语可以形容你们见面的频率?