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Orca vs great white shark
Who is the real apex predator?
8767
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Essential Words
6576#10138
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Essential Words 2
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6576#18046
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Listionary
6576#14187
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Occam's Razor
4386
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Odd Number
The Odd Number Rule
10066
Songs in Easy English
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offensive
11561
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opal
7181
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oppose
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A new study shows more than 80 percent of Japanese _____ the country hosting the Olympic Games this year.
15401
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optical fiber
7050
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optical fiber cable
6554
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ordeal
#Espresso English
4344
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otter
-- fend, paydirt, whip, insulate, pantry, frigid
14594
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The Old Hound
#Essential Words
11994
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