The only way to truly understand something is to do it yourself.
I'm not a person who likes to be at the bottom.
Sometimes, the hardest battles are fought within the confines of our own minds.
释义:他强调空气密度对于物质形态的决定性作用,认为物质的形态和性质都受到空气密度的影响。
Coal will remain part of the energy mix, but it must be cleaner and more responsible.