However， at times this balance in nature is ________， resulting in a number of possibly unforeseen effects.
举一反三
- Import tariffs and import quotas yield identical protection effects, consumption effects, redistribution effects, and revenue effects.
- Man may destroy the balance of nature, but, from time to time, nature takes a terrible______.
- Balance describes the number of distinctive categories.
- However, raising such taxes can have ___________ effects on economic activity.
- What is an example from Chinese culture that shows a balance between living with nature and utilizing science?