Sustainability must be the cornerstone of modern quarry operations, not an afterthought.
Love doesn't happen suddenly. Feelings build up over time, little by little.
文学是社会的镜子,反映了它的美德和缺陷。
We must embrace the unknown in order to discover our true potential.
某些城市人工制品的永久性赋予了它们纪念碑的品质。