水里总是遍布鹅卵石、砾石和沙子——它们被称为冰水沉积，是在水流减缓时沉积下来的。
The water was always laden with pebbles, gravel, and sand, known as glacial outwash, that was deposited as the flow slowed down.
最常见的空间是那些由松散的、未固结的砂和砾石组成的颗粒（沙粒和小卵石）之间的空间。
The commonest spaces are those among the particles—sand grains and tiny pebbles—of loose, unconsolidated sand and gravel.
这位富有耐心的艺术家是44岁的阿德里安·格雷，他会花几个小时在附近的沙滩寻找理想的岩石、卵石和砾石，看看它们是否相互适合。
Patient artist Adrian Gray, 44, spends hours scouring a nearby beach to select the ideal-sized rocks, boulders and pebbles to fit with each other.
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