cactus

cactus — noun

1. a plant from very dry places that stores water in a thick stem and often has sha

1.名詞A2
釋義

a plant from very dry places that stores water in a thick stem and often has sharp points instead of ordinary leaves.

例句

A cactus by the kitchen window needs very little water.

common pattern: cactus + needs little water

Priya bought a small cactus for her desk at work.

collocation: small cactus

同義詞
  • succulent

    broader term; many succulents store water but are not cacti

  • prickly pear

    one particular kind of cactus, not the general word

文法句型

countable noun

plural: cacti or cactuses

用法筆記

Usually countable. The regular plural cactuses is common in everyday English, while cacti is also widely used, especially in gardening and science.

常見錯誤

❌I bought two cactus for the balcony.
✅I bought two cacti for the balcony.' / 'I bought two cactuses for the balcony.
💡Use a plural form after a number.
❌The cactus has many sharp leaves.
✅The cactus has many sharp spines.
💡Most cacti have spines, not ordinary leaves.