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低頻度語
低頻度語
oath
oasis
oddly
occurrence
occupational
occupant
occult
occupancy
occidental
obstruction
obstruct
obstinately
obstinacy
obstinate
obsolete
old-time
ointment
oily
offspring
offshoot
off-duty
odyssey
odour
open-minded
open-ended
ooze
opaque
onward
onus
onslaught
onset
onlooker
onerous
oneself
one-way
one-to-one
one-sided
one-man
on-screen
on-the-spot
ominously
omission
omen
omelette
ominous
ombudsman
opulent
opus
opulence
optional
optimum
optimist
optics
optic
optical
oppression
oppressive
opposing
opportunist
opium
operating
open-mindedness
opener
ostentatious
ostensibly
ostensible
oscillate
oscillation
orientation
orient
orgy
orgasm
organizational
ordnance
ore
ordination
ordinarily
ordinance
orderliness
orderly
ordain
orchestral
orchestrate
orbital
orchard
outdoors
outdo
outcry
outdated
outcast
outburst
otter
ostrich
orthodoxy
orphanage
orphan
ornate
ornament
ornamental
ovation
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魚
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爬虫類両生類
木
頻出語彙
基本的な語彙
頻度の高い単語
中高頻度の単語
低・中頻度単語
よく使われる語彙
中心的な語彙
中頻度の単語
語彙を増やす
スムーズな語彙
頻度の低い単語
頭文字
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