n. 

龙
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bacillite,
bacillocin,
bacillomycin,
bacillophobia,
bacilloscopy,
bacillosis,
bacilluria,
bacillus,
Bacillus anthracis,
bacillus subtilis,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
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back door,
back down,
back drop,
back fire,
back flow,
back ground,
back lash,
back lighting,
back matter,
back number,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
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back talk,
back to back,
back up,
back water,
backabbr.,
backache,
backacter,
backactor,
back-alley,
back-arc,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
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backbite,
backbiter,
backbiting,
backbitten,
back-blading,
backblocks,
backblowing,
backboard,
back-bombardment,
backbond,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
n. 

龙
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back-check,
backcloth,
backcomb,
backcountry,
backcoupling,
backcourt,
backcourtman,
back-crawl,
backcross,
backcycling,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
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bar-losing,
barlow,
barm,
barmaid,
barman,
barmaster,
barmatic,
barmbrack,
Barmecidal,
Barmecide,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
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beanbag,
beanball,
bean-counter,
beancurd,
beanery,
beanfeast,
beanie,
beano,
beanpod,
bean-pod,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
n. 
齿龙
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bear in mind,
bear market,
bear off,
bear sth in mind,
bear sth or sb out,
bear up,
bear up sth,
bear upon,
bear with sb,
bear witness,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
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Bearden,
bearder,
bearding,
beardless,
beards,
Beardsley,
beard-tongue,
bearer,
bearer bond,
beargarden,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
n. 

龙
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bearizing,
Bearnaise,
bears,
bear's-ear,
bearskin,
bearskinned,
bearward,
bearwood,
Beas,
beast,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,
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beat around the bush,
beat down,
beat generation,
beat sb off,
beata,
beatability,
beatable,
beatage,
beaten,
beaten-up,
相似单词
placoderm,
Placodermi,
placoderms,
placodine,
placodium,
placodont,
placoid,
Placothuriidae,
Placozoa,
placozoan,