单词	tetraxon
释义	tetraxon noun te·​trax·​on te‧ˈtraksän plural -s : a tetraxial sponge spicule Word History Etymology tetra- + Greek axōn axle, axis
随便看	out-to-out out-year outa outachieve outachieved outachieves outachieving outact outacted outacting outacts outadded outadding outadds outage outages outarde outargued outargues outarguing outask outasked outasking outasks outate

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