Song Zimo stayed up practicing until midnight, yet he was still bright and energetic in the morning.
Seeing Yang Ping in the office, he said in a low voice, "Now I can proficiently peel and stitch grape skins, pinch crystal babies, and thread needles under an arthroscope even with my eyes closed."
These are all arthroscopy training methods: making an incision into the grape's skin under a microscope, peeling it off intact, and then stitching it back on; a crystal baby that has been soaked in water for too long is prone to cracking and can easily be crushed with a little force; threading a needle is a delicate operation, requiring the thread to be passed through a fine needle, and then using the needle to thread a string of tiny beads. These are all highly difficult microscopic techniques.
