Because of the great weight pressing down on them, these layers tend to fold downward at weak spots, and this finally causes an actual break in the crust.(由于巨大的重量向下压岩层，使它趋于在它的薄弱处向下折叠，这最终导致地壳的实质断裂。)
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。)
Individual specimens of Allende are covered with a black, glassy crust that formed when their exteriors melted as they were slowed by Earth's atmosphere.(每块阿伦德碎片样本都覆盖着一层黑色的、玻璃样的熔壳，这层熔壳是在它们的外表面与地球大气层摩擦减速中熔化形成的。)
Underneath the Earth's crust, there are a number of shifting slabs or plates that are slowly moving.(在地壳下面，有许多移动的板块在缓慢移动。)
Under the atmosphere, scientists think there is a very thin crust of carbon and oxygen.(科学家们认为在大气层下存在着一层由碳和氧组成的稀薄地壳。)
Earth's crust contains very little of this element, but most asteroids contain a lot more.(地壳中含有的这种元素很少，但大多数小行星上的要多得多。)
It is a bitter crust, alas!(这是个苦涩的外壳，唉！)
All are slowly moving because the plates float on a denser sem-iliquid mantle, the layer between the crust and Earth's core.(所有板块都在缓慢移动，因为它们漂浮在密度更大的半流体地幔上，也就是地壳和地核之间的那一层。)
An earthquake is a vibration that travels through the earth's crust.(地震是一种穿过地壳的震动。)
The most ancient parts of the continental crust are 4000 million years old.(该大陆地壳最古老的那些部分有40亿年了。)
