Word · Frequency #25694
crustacean
甲壳纲动物
a mainly aquatic arthropod with a segmented body and a hard outer shell
- 1.
Any arthropod of the subphylum Crustacea, including lobsters, crabs, shrimp, barnacles and woodlice.
甲壳亚门节肢动物,包括龙虾、蟹、虾、藤壶和潮虫等。
- 2.
any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
甲壳动物(多为水生节肢动物)
- 3.
Any arthropod of the clade Pancrustacea, which includes hexapods in addition to traditional crustaceans.
泛甲壳类节肢动物,除传统甲壳类外还包括六足动物。
甲壳亚门节肢动物,包括龙虾、蟹、虾、藤壶和潮虫等。；甲壳动物(多为水生节肢动物)；泛甲壳类节肢动物,除传统甲壳类外还包括六足动物。
In use
The crab is a crustacean that lives near the shore.
Many crustaceans, such as shrimp and lobsters, are important to the fishing industry.
We studied how a crustacean grows by shedding its old shell.
a crustacean
crustacean 是可数名词，复数形式为 crustaceans。
A crab is a crustacean.
螃蟹是一种甲壳纲动物。
crustaceans [verb]
泛指时常用复数形式。
Crustaceans live mainly in water.
甲壳纲动物主要生活在水中。
crustacean [noun]
此处 crustacean 作形容词，意为“甲壳纲的”。
Crustacean shells are made of chitin.
Connections
Collocations
- marine crustacean
- 海洋甲壳类动物
- Lobsters are marine crustaceans.龙虾是海洋甲壳类动物。
- freshwater crustacean
- 淡水甲壳类动物
- Crayfish are freshwater crustaceans.小龙虾是淡水甲壳类动物。
- crustacean species
- 甲壳类物种
- Scientists discovered a new crustacean species in the deep ocean.科学家在深海中发现了新的甲壳类物种。
- edible crustacean
- 可食用甲壳类动物
- Crab is a popular edible crustacean.螃蟹是一种常见的可食用甲壳类动物。
- crustacean shell
- 甲壳类动物的甲壳
- The crustacean shell is made of chitin.甲壳类动物的壳由几丁质构成。
Confusing words
Learner notes
Memory Tip
crustacean 开头 cr- 像 crust（外壳），虾蟹一身硬壳，正是甲壳纲动物。
Context & Register
语域：mixed 常见场景：biology textbooks、natural history museums、science documentaries 该词作名词时比较常见于生物学、科普教育等场合；日常口语里通常改用 shellfish、crab、lobster 等更具体的词。
Pronunciation & Spelling
发音匹配：station、nation、relation 与 crustacean 的重读部分 /eɪʃən/ 押韵。注意拼写相似的 ocean /ˈoʊʃən/ 和 musician /mjuˈzɪʃən/ 并不押韵，因为重读元音分别是 /oʊ/ 和 /ɪ/。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.