crusted

动词 crust:

1. form a crust or form into a crust
   同义词：crust

形容词 crusted:

1. having a hardened crust as a covering
   同义词：encrusted, crusty, crustlike

1. The lake was crusted over with ice.
   河面上结了一层冰。
2. The surface of the liquid gradually crusted over.
   液体表面渐渐地结了一层皮。
3. The snow crusted the lake last night.
   昨夜的雪使湖面结了冰。