All of Cuizhu's college classmates work in a German-funded enterprise. Xi Lan is a university classmate of Cuizhu, and Jian Song is the department manager of the German-funded enterprise. Some of the employees of the German-funded company are from Huai'an. The employees of the German-funded company have gone to Germany to study, and they all speak German.
Xilan can speak German can be derived from the following statements.