sand dollar
noun[C]
uk/ˈsænd ˌdɒl.ər/us/ˈsænd ˌdɑː.lɚ/aflattypeofseaurchin(= asmallseacreaturewith a roundshellcoveredwithsharppoints)thatlivespartlyinsandbelow thesurfaceof thewater. Theouterskeletons(= thebonyframesupportingthebody)ofdeadsanddollarsare oftenfoundonbeaches:
饼海胆，沙钱Sanddollarsaremarinecreaturesthat areroughlythesizeof thepalmofyourhand.沙钱是一种海洋生物，大约有手掌大小。
Shespentacarefreehouron thebeachsearchingforsanddollars.她在海滩上无忧无虑地玩了一个小时，寻找沙钱。
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- Sanddollarsare ofteneasytofindalong the hightideline.
- Livingsanddollarsarecoveredwithvelvety,purplespinesused tograbfoodparticles.
- Awreathon thefrontdoorwasdecoratedwithsanddollarsandstarfish.
Sea creatures
- abalone
- amphipod
- anemone
- barnacle
- barrier reef
- cowrie
- crab
- cray
- crayfish
- crustacean
- limpet
- littleneck clam
- lobster
- marron
- mollusc
- shellfish
- shipworm
- shrimp
- squid
- starfish