crust
英 [krʌst] 美 [krʌst]
n. 面包皮；（馅饼或比萨饼等的）酥皮；硬外皮，硬外壳；地壳；<非正式>生活，生计
v. 形成（或结成）硬皮（或硬壳）
crust 面包皮，地壳
来自PIE*kreus,冷冻，结晶，词源同crystal,cryogenic.原指由冷冻形成的硬壳。
①可数名词 The crust on a loaf of bread is the outside part. 面包皮
Cut the crusts off the bread and soak the bread in the milk.
切掉面包皮，将面包浸在牛奶中。
②可数名词 A pie's crust is its cooked pastry. 馅饼皮
The Key lime pie was bursting with flavour. Good crust, too.
“基”牌酸橙派味道很浓，外皮也很好。
③可数名词 A crust is a hard layer of something, especially on top of a softer or wetter substance. 硬外壳
As the water evaporates, a crust of salt is left on the surface of the soil.
水蒸发后，土壤表面留下一层盐。
④可数名词 The Earth's crust is its outer layer. 地壳
Earthquakes leave scars in the Earth's crust.
地震会在地壳上留下痕迹。
【拓展】
crusty
英 [ˈkrʌsti] 美 [ˈkrʌsti]
adj. 易怒的；执拗的；有壳的；像外壳一样的
Crusty bread has a hard, crisp outside. 有硬而脆外皮的
crusted
英 [ˈkrʌstɪd] 美 [ˈkrʌstɪd]
adj. 生了外皮的；有沉淀的；陈旧的；陈年的
If something is crusted with a substance, it is covered with a hard or thick layer of that substance. 硬皮的; 厚皮的
crustal
英 [ˈkrʌst(ə)l] 美 [ˈkrʌstl]
adj. 壳的；地壳的
of or relating to the earth's crust 地壳的
crustacean
英 [krʌˈsteɪʃ(ə)n] 美 [krʌˈsteɪʃn]
n. 甲壳纲动物
【拼写相近】
rust
英 [rʌst] 美 [rʌst]
n. 锈，铁锈；（植物的）锈病，锈菌；铁锈色，赭色
v. （使）生锈；成铁锈色；（因疏忽或不用而）衰退，变迟钝；（因长时间不用或有害使用而）损害，腐蚀
Rust is a brown substance that forms on iron or steel, for example when it comes into contact with water. 锈
trust
英 [trʌst] 美 [trʌst]
n. 信任，信赖；（金钱或财产的）信托，托管；受托基金机构，受托团体；
v. 信任，相信；对……有把握，信得过；坚信，信仰；希望，盼望；托交，托付；<古>赊账
If you trust someone, you believe that they are honest and sincere and will not deliberately do anything to harm you. 信任
crest
英 [krest] 美 [krest]
n. （山）顶，（浪）峰；（家族、城镇、机构等作为标记的）饰章，徽章；鸟冠，羽冠；（昔日士兵帽子上的）羽饰
v. 到达山顶（或浪峰）；饰有（或系有）冠状饰物（be crested with）
The crest of a hill or a wave is the top of it. 顶; 峰
crush
英 [krʌʃ] 美 [krʌʃ]
v. 压坏，挤压变形；捣碎，碾成粉末；把……挤入，将……塞进（狭小的空间内）；（使）变皱，起皱；制服，镇压；使心烦意乱，使消沉
n. 拥挤的人群；
To crush something means to press it very hard so that its shape is destroyed or so that it breaks into pieces. 压扁; 压碎
