In times of crisis, transparency and accountability are paramount.
Freedom is a heavy load, a great and strange burden for the spirit to undertake.
系统辨识是从观测到的输入输出数据中建立动态系统数学模型的科学与艺术。
Love is the most powerful force in the universe.
耳朵是负责听的,听了之后再加以审察,这叫做聪明。