TOEIC単語帳
TOEIC必須単語を効率的に学習しましょう
operate
operating fund
operation
operational
operator
opponent
opportunity
oppose
opposition
optimal
optimistic
option
orchard
order
2つの品詞
order-fulfillment
orderly
ordinary
organic
organization
organize
original
originally
original packaging
original submission
outcome
outdated
outerwear
outgoing
outing
outlet
outline
2つの品詞
outlook
out-of-date
out of order
out of place
out of town
outpace
output
outreach
outright
outsell
outsource
outstanding
overall
overbooked
overcharge
overcome
overcrowding
overdue
overestimate