| 例句 |
Cover with a layer of sand and level it off.铺上一层沙，并把它弄平。There was a layer of fine dust on the table.桌子上有一层细细的灰尘。We put down a layer of mulch in the rose garden.我们在玫瑰园里铺了一层护根物。Protecting the edge of the bone is a layer of soft, spongy tissue.保护骨头边沿的是一层海绵状的软组织。There was a layer of sediment in the bottom of the tank.水箱底有一层沉淀物。This seam of coal reposes on a layer of clay.这个煤层处于一层黏土岩之上。Sprinkle a layer of soil over the seeds.在种子上撒一层土。It is wise to start infilling with a layer of gravel for drainage.先填上一层利于排水的砾石是个明智的做法。As the river slows down, it deposits a layer of soil.河水流速变慢时，一层泥沙便沉积下来。The wind had coated everything with a layer of sand.这阵风使所有的东西上都落了一层沙。The park had been obliterated beneath a layer of snow.公园被覆盖上了一层雪。There is a layer of cement under the bricks.砖下面有一层水泥。 |