crustacean

crustacean — 名詞

1. An animal whose body is split into segments and protected by a hard outer casing

1.名詞B2
釋義

甲殼類

甲殼類動物

An animal whose body is split into segments and protected by a hard outer casing, found mainly in aquatic environments. Familiar types include crabs, lobsters, shrimp, and barnacles.

例句

Ari found a small crustacean hiding under a rock by the beach.

Ari 在海邊的岩石下發現了一隻小甲殼動物。

Theo's biology class watched a crustacean grow a new shell after shedding its old one.

Theo 的生物課觀察了甲殼動物脫去舊殼後長出新殼的過程。

pattern: watch + crustacean + infinitive

同義詞
  • shellfish

    broader everyday term that includes molluscs (clams, oysters) as well as crustaceans

文法句型

countable noun

plural form: crustaceans

用法筆記

Often used in the plural form 'crustaceans' when referring to the group as a whole ('most crustaceans live in salt water').