igneous rock

• n. 火成岩

英英释义

Noun:

1. rock formed by the solidification of molten magma

例句

用作名词 (n.)

1. Trap rock is a form of plutonic igneous rock.
   暗色岩是一种火成岩。
2. Igneous rocks do not contain fossils.
   火成岩不含化石。