industrial revolutions 工业革命
technological revolutions 技术革命
social revolutions 社会革命
scientific revolutions 科学革命
A: Do you believe these technological revolutions are beneficial?
A：你认为这些技术革命是有益的吗？
B: I think they bring both challenges and opportunities.
B：我认为它们既带来了挑战也带来了机遇。
1) 政治或社会上的变革、革命
2) 物体的旋转或公转
3) 根本性的变化
1. 革命，变革
2. 旋转，公转
noun
1. a sudden, complete, or marked change in something, especially in a political or social system
Synonym: upheavals, transformations