C489 The Necessary Investment

"Tell me, is there a hole in your brain!" Mu Yixin pointed at Shen Wuyou's nose and cursed, "If there isn't a hole in your brain, then give me the thought of giving up!"

Shen Wuyou was not angry at Mu Yixin's words. Instead, he smiled and said, "How should I say it?"

"Do you think that the thing called trains can reach the efficiency you mentioned? I won't even mention it." Mu Yixin said