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| hyperbola | hautboy | catamaran | bilabial | pas de deux [dE5dE] |
| the two-crop paddy | equivoke | Bactrian camel | fish | Gemini |
| diplicocus | double exchange | Shuangmiaosaurus | double degree;two Bachelor's degrees | squamula alaris |
| Dilophosaurus | hammerhead | Amphicoelias | Diplura | Shuanglongqiao |
| unshielded twisted pait | dispermy | Diceratops | diphosgene | double objects |
| diplonema | a double bed | Double blind method | bunk | biuret |
| amphora | double-edged sword | lemniscate | biweekly | double-track system |
| obidoxime chloride | fold of fat below the chin | bimonthly | bivalve | bivalve |
| Bilateral | doubly | biconvex | biconcave | calliper |
| ambipolar | inimitable | bicylinder | birotation | binocular |
| dual | biauricular | Dicerorhinus sumatrensis | amboceper | diphthong |
| double plow | play a duet--collaborate; echo each other | registered letter with receipt | caduceus | doubly |
| double electrovalence | matchlessly | a double chair | double | double room |
| a gun with double barrels | hunter | equivocally | double or quits | double door |
| daily double | even | kylix | tubber | synallagmatic |
| double white lines | theorbo | uranyl | double decoding | twayblade |
| quibble | two-way traffic | dual carriage-way | amphikaryon | biaxial |
| biaxial | amboceptor | ambiguity | agger | ambiguity |
| ambiguity | bitts | bivariate | bilingual | bilaterally |
| conduplicate | biweekly | bicaudate | bicyclic | bicuspid |
| bicorn | bicorporal | bicuspid | bicuspid | bilateral |
| bilateral | bigeminal | bifocal | bifoliate | biforate |
| distichous | distichous | distichous | double | diplobacillus |
| disaccharidase | diaster | dicephalous | diaster | dichromatic |
| didymous | crocodile | cupid | delphic | diadic |
| didymous | diesis | dimorphic | bisphenols | biparamid |
| electric double layer | bivalent | bicavity | Bisquare | Two-way table |
| Double logarithmic | bistratal | Shuangxie Village | bivalve | double focusing |
| Double Springs | biprism | case history folder with double side | binoculus | vulsellum hook |
| volsella | bibeveled drill | twin adapter | bimanual | bi-join ball |
| binangle | biface | bicoudate | bifocus | biparental |
| amphinucleolus | Amphidiscophora | Diplura | Digononta | two-oared |
| a pair of shoes | meal ticket | affect [hunt, lick] the letter | duplex | double predication |
| Biarum | dikaryon | accipiter bicolor | harpagus bidentatu | binocular |
| double recessive | amphihaploidy | double grapevine | doublet | double harness |
| double jacking | lenticular arch | Shuangyuan Village | Shuanglian Village | Shuangyu Village |
| Shuanggang Village | Shuangzhong Village | Shuangpan Village | Dongshuang Village | Shuangtang Village |
| Shuangying Village | Shuangma Village | Shuangqing Village | Shuanghong Village | Shuangwei Village |
| Shuangzhang Village | Shuangyan Village | Shuangjian Village | Shuangpu Village | Shuanghe Village |
| Dashuang Village | Shuangxuan Village | Shuangling Village | Shuangyang Village | Shuangyi Village |
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