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单词 clam
释义
clam

Science and Technology
  • An informal name given to any aquatic mollusc in which the body is enclosed between two hinged shells (valves), such molluscs forming the class Bivalvia. They occur in fresh and salt water and vary greatly in size, the largest recorded giant clam (Tridacna gigas), found in 1817, measuring 1.37 m and weighing 230 kg.

    Mike Allaby


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