复数： gravels

The gravel was used to bring a slightly over-excavated floor back to grade .

在开挖稍稍过度的情况下，碎石用来把地面垫高到原定高度。

Don 't mind the gravel digging into your cheek .

不要介意砾石挖伤了你的脸颊。

Ruth heard gravel rolling around where judy was climbing .

鲁斯听见了朱迪爬行的地方石子滚落的声音。

Clumps of nectar flowers can be separated from tick habitat by gravel or mulch paths or strips of lawn to reduce its potential for harboring ticks .

可以采用砂砾路或有覆盖防护的路径，或者草皮带来将其与蜱虫栖息地分隔开，从而降低蜱虫藏于其中的可能性。

Notice that the ground immediately around that pebble has less dust visible ( more gravel exposed ) than in other parts of the image .

你可能会马上注意到，画面中的其他部分相比，卵石的周围几乎没有什么尘土（更多的是暴露的砾石）。