north
加入词篮northeast
northern
northwest
nose
not
note
note
note
notebook
notebook
notebook
nothing
notice
novel
novelist
November
now
nowadays
nowhere
nuclear
numb
number
nurse
nursery
nut
nut
nutrition
nutrition
o'clock
obey
obey
object
object
object
observe
obtain
obtain
obvious
occupation
occupy
occur
ocean
Oceania
Oceanian
October
of
off
offence
offer
office
officer
official
offshore
often
oh
oil
oil
oilfield
oilfield
OK
old
Olympic
on
once
oncoming
one
one's
one's
one-way
oneself
onion
online
only
onto
open
opening
opera
operate
operation
operation
operator
opinion
oppose
opposite
optimistic
optional
optional
or
oral
oral
orange
orange
orbit
orchestra
order
order
order
ordinary
organ
