• n. 地殼；外殼；面包皮；堅硬外皮
• vi. 結硬皮；結成外殼
• vt. 蓋以硬皮；在…上結硬皮

來自PIE*kreus,冷凍，結晶，詞源同crystal,cryogenic.原指由冷凍形成的硬殼。

crust

crust: [14] Latin crusta meant ‘hard outer covering, shell’ (it is related to a number of words, including ultimately crystal, denoting a hard surface caused by freezing). Old French acquired it as crouste (the modern French form cro?te formed the basis of cro?ton, borrowed into English in the early 19th century), and passed it on to Middle English as cruste. Crusta formed the basis of the modern Latin adjective crustāceus ‘having a shell’, applied in the early 19th century to the crustacea or crustaceans. And a custard was originally a kind of pie enclosed in a crust.
=> cro?ton, crystal, custard

crust (v.)

late 14c.; see crust (n.). Related: Crusted; crusting.

crust (n.)

early 14c., "hard outer part of bread," from Old French crouste (13c., Modern French cro?te) and directly from Latin crusta "rind, crust, shell, bark," from PIE *krus-to- "that which has been hardened," from root *kreus- "to begin to freeze, form a crust" (cognates: Sanskrit krud- "make hard, thicken;" Avestan xruzdra- "hard;" Greek krystallos "ice, crystal," kryos "icy cold, frost;" Lettish kruwesis "frozen mud;" Old High German hrosa "ice, crust;" Old English hruse "earth;" Old Norse hroer "scurf"). Meaning "outer shell of the earth" is from 1550s.

1. Sergeant Parrott normally spoke with an upper-crust accent.

帕羅特軍士說話通常帶著上流社會的腔調。

來自柯林斯例句

2. The pastry crust was always underdone.

餡餅的殼皮常常烤得不透.

來自《簡明英漢詞典》

3. The crust of the bread is burnt.

這塊面包的外皮烤焦了.

來自《簡明英漢詞典》

4. In his early days, he would do almost anything to earn a crust from the sport.

早年為了能在體育界混口飯吃，他幾乎什么都做。

來自柯林斯例句

5. The most ancient parts of the continental crust are 4000 million years old.

大陸地殼最古老的部分有40億年歷史。

來自柯林斯例句