我是这样的人，如果你问的问题我不知道答案，我会直接告诉你“我不知道”。
I'm the type of person,if you ask me a question, and I don't know the answer,I'm gonna to tell you that I don't know. —The Pursuit of Happyness.
The past is not dead. It is not even past.
No matter how others see me, I just need to be myself.
The most advanced machinery means nothing without skilled hands to guide it.
Innovation in traditional industries like coal mining is not just possible—it's essential.
元素可以分为具有相似性质的组。
每个人都有自己内心的黑暗，是否表现出来取决于个人。