crust

麵包皮、外皮

He cut the crusts off the sandwiches for the children.

他把三明治的麵包皮切掉給小孩吃。

派皮、餅皮

The apple pie had a golden, flaky crust.

這個蘋果派的派皮金黃又酥脆。

地殼

Earthquakes happen when plates in the earth's crust shift.

當地殼的板塊移動時就會發生地震。

硬殼、硬皮、結殼

A thin crust of ice had formed on the pond overnight.

池塘表面一夜之間結了一層薄冰殼。

結硬皮、結殼

Snow had melted and crusted over on the driveway.

車道上的雪融化後又結成了一層硬殼。