物理系统的对称性反映在其能级的简并性上。
每一次的演出都是一次新的挑战,我喜欢这种充满未知的感觉。
Farmers are the original environmentalists; we must support their work.
创新不仅仅是创造新产品;它关乎重新构想整个客户体验。
I think it's rarely about what you actually learn in class—it's mostly about what questions you ask yourself.