saturated acyclic hydrocarbon

例句：

1. 1.The soil is highly saturated with water.
   土壤被大量的水分饱和。
2. 2. The oil is saturated with methane gas.
   这种油充满了甲烷气体。
3. 3. The cake was saturated with buttercream frosting.
   这个蛋糕被黄油奶油霜覆盖着。