单词	butter clam
释义	butter clam noun : either of two edible clams (Saxidomus nuttallii and S. giganteus) of the Pacific coast of North America Word History First Known Use 1899, in the meaning defined above
随便看	optionality optionalize optionally optionals optionary optioned optionees optioning options optive opto- optoelectronic optoelectronics optokinetic optologists optometers optometric optometries optometrist optometrists optometry optomotor reaction optophones opts opts (for)

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