adj.無硬皮的；沒有外殼的

He had the crust to ask to borrow my new car! 他竟有臉借我的新車!

The earth's crust is between 5 and 25 miles thick. 地殼有五至二十五英里厚。

Earth quakes can result from stresses in the earth's crust. 地殼內(nèi)的應力可能引起地震。

The crust on the snow was thick enough for us to walk on it. 外層的雪已經(jīng)凍硬，可以在上面行走。

He had the crust to order me around. 他厚著臉皮對我發(fā)號施令。

You may slip and burst your crust by doing so. 你這樣做會滑倒弄破皮的。