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pigeonhole
docile
arduous
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hysteria
uh-huh
herbicide
savvy
parabolic
440 yards
acherontia atropos
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mastered
mastered
/ˈmæstɝd/
adjective
Understood perfectly
(
down pat
,
mastered
,
down
)
understood perfectly
Had his algebra problems down
had his algebra problems down
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