introduced species; non-native species; alien species
study; research; investigation
useless; worthless; absurd; baloney
riddle; puzzle; enigma; enigmatic; mysterious
flower; blossom; cherry blossom; beauty; blooming (esp. of cherry blossoms); ikebana; hanafuda
not feeling like doing ...; having no mind to ...; being in no mood for ...; indifferent; half-hearted; dispirited
academic year; school year; year in school; grade in school
tedious; boring; being fed up with
amateur; layman; respectable woman (i.e. not a prostitute, hostess, geisha); (arch.) unlicensed prostitute
maze; labyrinth; inner ear
residence; estate; grounds; premises; mansion
interest (in something); curiosity (about something); zest (for)
without; unacceptable; not alright; unsatisfactory
another school; other schools
to invite; to ask; to beckon; to wave someone in; to call in; to send for
opposition; rivalry; competition; antagonism
war; battle; match; game; competition
things like; something like; someone like; such a thing as; (the fact) that; to think that
being in charge of (esp. a class or subject); taking charge of; class teacher; homeroom teacher; form teacher
to be in high spirits; to be full of vigor (vigour); to be enthusiastic; to be eager; to stretch to breaking point
suddenly; casually; accidentally; incidentally; unexpectedly; unintentionally
scale; scope; plan; structure
(program of) entertainments; special events; exhibitions; amusements; attractions
perhaps; probably; generous; many; much
good; advantage; sake; purpose; consequence; result
practice; training; drill; (an) exercise; workout
there (place relatively near listener); there (place just mentioned); that place; then (of some incident just spoken of); that (of point just raised); (arch.) you
when it becomes; when it comes to
noisy; loud; annoying; troublesome; fussy; finicky
to reverberate; to resound; to echo; to have one's fame spread; to be renowned
sound; noise; note; fame; Chinese-derived character reading
concert band (as a school activity); wind ensemble