习惯用语crack a crust1.生活得还不错, 收入尚堪自给crack a tidy crust1.有大成就, 生活宽裕; 发了一大笔财earn one's crust1.挣钱糊口have a crust1.[美俚]脸皮太厚; 太大胆; 太卤莽, 太冒失the upper crust1.面包的表皮2.[古、俚]上层社会; 贵族3.[俚]头皮, 脑壳4.帽子特殊用法breakable crust1.易碎雪层calcareous crust1.【地质】钙积层continental crust1.陆壳cork crust1.【植】木栓壳desert crust1.沙漠壳earth crust1.地壳flinty crust1.硬壳foam crust1.【水】泡沫状结壳foxy crust1.赤褐色外皮high silver crust1.高银壳ice crust1.冰壳leathery crust1.紧勒的外皮lunar crust1.月壳marble crust1.化而又冻的冰面oceanic crust1.【地质】洋底壳oil crust1.油壳; 固体油层pale crust1.浅色面包皮protecting crust1.防护壳rain crust1.【水】雨斑壳slag crust1.渣皮snow crust1.雪壳soil crust1.土结皮spring crust1.春季冰壳sun crust1.【水】再结雪壳surface crust1.表面壳层upper crust1.表皮weathering crust1.风化壳wind crust1.风成雪壳zinc crust1.锌壳, 银锌壳zinc-rich crust1.富锌壳(冷凝器内壁上的)crust of cobalt1.钴壳, 钴华crust on catalyst1.催化剂上的皮