英语词汇“file shell”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

file shell

noun

A free-swimming bivalve mollusc, the shell of which is typically white and has a rough, ribbed external surface.

Family Limidae.

The crab was presumably going to try to break it open as soon as possible, but the file shell's acid secretions may have permitted a last-minute escape....

The file shell, like the scallop, can move very rapidly by clapping its shells together.
A spiny file shell can use its foot to bounce up from the bottom and can swim, but file shells have no eyes.

单词	file shell
释义	file shell noun A free-swimming bivalve mollusc, the shell of which is typically white and has a rough, ribbed external surface. Family Limidae. The crab was presumably going to try to break it open as soon as possible, but the file shell's acid secretions may have permitted a last-minute escape.... The file shell, like the scallop, can move very rapidly by clapping its shells together. A spiny file shell can use its foot to bounce up from the bottom and can swim, but file shells have no eyes.
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