The structure of the international system forces states to behave in certain ways, regardless of their internal characteristics.
绘画的行为是一种共融的行为。
量子力学的美在于它能够揭示看似不相关现象之间的隐藏联系。
CRISPR的美妙之处在于它的简洁和精确。
Every action has its pleasures and its price.