shallow level

例句：

1. 1. The shallow level of the lake is suitable for swimming.
   湖的浅层适合游泳。
2. 2.The researcher found that the shallow level of the ocean had been affected by pollution.
   研究者发现，海洋的浅层受到了污染的影响。
3. 3. The company's decision to invest in a new technology was based on its ability to reach the shallow level of consumer demand.
   该公司决定投资新技术是基于其能够达到消费者需求的浅层水平。