我们从前的一切观念都正在改变，我们的工作肯定要有很大变动。
If she has once set her face against a thing, nothing will persuade her to change her mind.
原材料的价格变动对化工企业的冲击很大。
Chemical companies can be highly vulnerable to changes in the price of raw materials.
原材料的价格变动对化工企业的冲击很大。
Chemical companies can be highly vulnerable to changes in the price of raw materials.
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