crust

• 指面包、糕点或披萨等烘焙食品外部硬而脆的层；也指地球或其他天体的坚硬外层。

A noun referring to the outer, hard layer of bread, pastry, pizza, or the earth's surface.

1. Bread crustA1formalculinary

   The hard outer surface of a loaf of bread.

   面包皮

   • She prefers to eat the crust of the bread.
   • The crust of this baguette is perfectly crispy.
   • He cut off the crusts from his sandwich.

   同义词outsiderindshell

2. Pie crustA2formalculinary

   The pastry covering or base of a pie.

   派皮

   • The pie crust was golden and flaky.
   • She rolled out the dough for the crust.
   • This recipe makes a delicious buttery crust.

   同义词pastrypie shellshell

3. Earth's crustB2formalscientific

   The outermost solid layer of the Earth.

   地壳

   • The Earth's crust is composed of tectonic plates.
   • Volcanic eruptions occur when magma breaks through the crust.
   • Scientists study the crust to understand geological history.

• 动词，指形成或覆盖上一层坚硬的外层或外壳，也可指表面变硬、结壳。

A verb meaning to form or become covered with a hard outer layer or crust.

1. Form a hard outer layerB2formalculinary

   To form or develop a hard, crisp outer surface, especially on food.

   结硬壳

   • The bread crusted beautifully in the hot oven.
   • Let the pie crust for 10 minutes before serving.
   • The cheese on top crusted into a golden brown layer.

   同义词cakeencrusthardenincrust

2. Become covered with a hard layerB2formal

   To become covered with a hard, brittle surface, often due to drying or cooling.

   结硬皮

   • The lava crusted as it hit the cold water.
   • The mud crusted on his boots after the hike.
   • The paint crusted over in the can after being left open.

   同义词cakeencrusthardensolidify