<單字複習>
已選單詞
abnormal
ancient
atypical
cancelled
common
completed
constant
contemporary
continuous
current
current
delayed
early
finished
frequent
infrequent
intermittent
irregular
late
modern
nonstandard
normal
obsolete
occasional
old-fashioned
ongoing
outdated
overdue
postponed
punctual
rare
recent
regular
standard
timely
typical
unusual
usual
