boulder

/ˈbəʊldə(r)/ (bre, ipa) · [bˈoldɚ] /ˈbəʊldər/ (ame, ipa) · [bˈoldɚ] /ˈbōl-dər/ (ame, mw)

boulder — noun

  • bouldersingular
  • bouldersplural

1. a rock so big and heavy that one person cannot lift it.

1.名詞B2
釋義

a rock so big and heavy that one person cannot lift it.

例句

Hao hid behind a boulder when rain hit the mountain path.

behind a boulder for shelter

A fallen boulder blocked the narrow road after the hillside storm.

a boulder blocks the road

同義詞
  • rock

    the broad everyday word; it can be much smaller or part of a larger rock surface

  • stone

    common everyday word, often used for a smaller piece that can be picked up more easily

文法句型

a huge boulder

move a boulder

a boulder blocks the road

用法筆記

Usually countable and used for one separate rock on the ground, on a slope, or by a river. Distinguish from 'rock', which is the broader everyday word and can also mean stone as a material.

常見錯誤

❌We sat on a big stone the size of a car.
✅We sat on a boulder the size of a car.
💡use 'boulder' for one extremely large rock.
❌The road was blocked by many boulder.
✅The road was blocked by many boulders.
💡use the plural form for more than one.