We should revise our protectionist practices in trade, and promote free trade and competition.
我们应该修改我们的贸易保护主义做法,推广自由贸易和竞争。
What is needed in the case of noise is a study of large numbers of people living under noisy conditions,
对于噪音问题,需要对大量生活在噪音中的人进行研究,