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- A red,yellow,or brown mineral,essentially an ore of vanadium and lead. 钒铅矿一种红色、黄色或褐色矿物，尤指一种铅和钒矿
- A usually yellow to orange - brown mineral,PbMoO4,used as a molybdenum ore. 钼铅矿通常为黄色或桔棕色的矿，PbMoO4，用作钼矿
- A red, yellow, or brown mineral, essentially an ore of vanadium and lead. 钒铅矿一种红色、黄色或褐色矿物，尤指一种铅和钒矿
- A red,yellow,or brown mineral,essentially HFeO2,one of the common constituents of rust. 针铁矿一种红色、黄色或棕褐色的矿物，基本成分是HFeO2，为铁锈的常见成份之一
- A red, yellow, or brown mineral, essentially HFeO2, one of the common constituents of rust. 针铁矿一种红色、黄色或棕褐色的矿物，基本成分是hfeo2，为铁锈的常见成份之一
- A white, yellowish, or brown mineral, magnesium carbonate, MgCO3, used in the manufacture of magnesium oxide and carbon dioxide. 菱镁矿一种白色、浅黄色或棕色的矿物，碳酸镁，mgco3，用于生产氧化镁和二氧化碳
- A gray, green, or brown mineral similar to mica, formed by chemical alteration of other minerals, such as cordierite. 块云母类似云母的灰色、绿色或棕色矿物，由其它矿经化学变化形成，如堇青石
- A gray,green,or brown mineral similar to mica,formed by chemical alteration of other minerals,such as cordierite. 块云母类似云母的灰色、绿色或棕色矿物，由其它矿经化学变化形成，如堇青石
- He doubles the parts of a farmhand and a miner. 在这出戏里他既扮演雇农又扮演矿工。
- Mr. Robert Brown was announced as the sponsor. 罗勃特·布朗先生被宣布为赞助人。
- It possessed rich mineral deposits, including gold. 它拥有丰富的矿藏，包括黄金。
- a dark brown mineral of the amphibole group; magnesium iron silicate. 闪石族中一种深褐色的矿物，含镁、铁的硅酸盐。
- Do you know why Mr Brown has a heavy heart? 你知道为什么布朗先生心情不愉快吗？
- The girl was dressed in brown from top to toe. 那女孩从头到脚穿着一身棕色的衣服。
- The country possesses rich mineral resources. 这个国家有丰富的矿产资源。
- Mrs Brown is known as a social climber. 布朗太太是有名的趋炎附势的人。
- No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。
- A miner's lamp is fixed onto his helmet. 矿灯固定在矿工的头盔上。
- This hen lays beautiful brown eggs. 这只母鸡下很漂亮的棕色蛋。
- The linnet is a small brown songbird. 红雀是一种棕色会叫的小鸟。
