sticky shale

例句：

1. 1. The sticky shale is a good source of oil and gas.
   这种粘土岩是石油和天然气的良好来源。
2. 2.The shale formation has been studied for its potential as a renewable energy source.
   这种页岩层已经被研究过，作为可再生能源的潜在来源。
3. 3.The sticky shale can be easily crushed and used in construction.
   这种粘土岩可以被轻易地粉碎并用于建筑。