释义
adj.
having a crisp or hard outer layer or covering
有硬壳的；有硬皮的
-
crusty bread 有硬皮的面包。
(of a substance)acting as a hard outer layer or covering
（物质）起硬壳（或覆盖物）作用的
-
Lake Manyara was ringed by crusty salt deposits .马尼亚拉湖被硬壳似的盐沉积物围绕着。
(especially of an old person)easily and often irritated
（尤指老人）易怒的，脾气坏的
-
a crusty old Scots judge 一个易怒的老苏格兰法官。
n.
〈非正式〉 脏皮士（指无家可归或常在外流浪的、衣冠不整并拒绝传统价值的年轻人）。
词源
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