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Chapter 529 - Chapter 529: Step by Step

Professor Ye Hong's face darkened as he asked sternly, "What's the matter?"

Xu Siyu pursed her lips, saying, "I saw on a Material Department journal that the X7 material is compatible with many substances, so I directly used it."

Ji You laughed upon hearing this and said, "But does Senior Siyu know? It's not the X7 material that is truly compatible with many substances; it's the R7 material which is obtained after the water-soluble X7 material is further subdivided."

Xu Siyu's eyes widened slightly.

The expressions on Professor Ye Hong, Professor Jiang Yulan, and several other teachers' faces were becoming increasingly ugly.

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