volcano

volcano — noun

1. a mountain or hill with an opening in the earth's surface. Very hot liquid rock

1.名詞B1
釋義

a mountain or hill with an opening in the earth's surface. Very hot liquid rock (called magma underground and lava on the surface), together with ash and gases, can rise from deep inside the earth and shoot out through this opening.

例句

Mount Fuji in Japan is a volcano that has not erupted since 1707.

collocation: active volcano / dormant volcano

Hot ash from the volcano buried the ancient Roman city of Pompeii.

文法句型

a/the + volcano

volcano + verb (erupts/formed)

用法筆記

Volcanoes are often described by their activity level: an active volcano has erupted in recorded history; a dormant volcano has not erupted for a long time but could again; an extinct volcano will never erupt again. A figurative use — for example, 'a political volcano' or 'a volcano of emotion' — describes a situation that is unstable and could suddenly become dangerous or violent. This figurative meaning is common in journalism and literature but is not treated as a separate dictionary sense.

常見錯誤

❌The volcano magma is very hot underground.
✅The magma inside the volcano is very hot.
💡Magma is the term for hot liquid rock below the surface; once it comes out of the volcano it is called lava.
❌Taipei 101 is a tall volcano.
✅Taipei 101 is a tall building.
💡A volcano is a natural landform formed by eruptions, not a man-made structure.