Beautiful as a flower, passing away like water.
Some things turn around for a lifetime, but some things will never turn around stubbornly (original)
I can't bear the fleeting time, but I can't escape the teenagers here.
I like to stand on your left, so that I can be closer to your heart.
Forgive me for thinking about you all the time, okay?
These are some faint sentences, which may not be suitable for signing, but they will be reassuring.