soil and rock的用法和樣例:
例句
- Bituminous concrete facings for earth and rockfill.
土石壩的瀝青混凝土面層。
- When the trail zigzagged its way out of the Caves area, the asphalt ended and dirt and rocks made it rougher.
再後來瀝青沒有了,地面土石混雜,凹凸不平,卻更名副其實,山間小道本該如此模樣。
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