People often say that we have iron bars, so what is the concept of iron bars and what is the difference between iron bars and lovers?
My understanding is that iron is difficult to melt. If you compare a friendship to iron, then no matter how hard you hit it, you can't destroy it. In fact, it is generally used to describe friendship, which is different from the usual lovers. Most lovers are called confidantes, and will disappear after this period of beauty. The two cannot be confused at all.