study; research; investigation
few decades; many decades; several decades
to tie up in a bundle (e.g. straw, hair, bills, letters); to bundle; to govern; to manage; to fold (one's arms); to put together (one's hands)
rope; cord; line; grand champion's braided belt
to intertwine; to twist together
twist; spin; ingenuity; sophistication (e.g. of writing style); wrapped offering (of money); twisting throw
elastic; elastic cord; elastic band
strong interaction; strong force
expansion and contraction; elasticity; flexibility
to twist (yarn); to lay (rope)
flood of emotions; many thoughts
to shut oneself in (e.g. one's room); to be confined in; to be filled with (emotion, enthusiasm, etc.); to fill the room (of a gas, smell, etc.); to be heavy with (e.g. smoke); to be muffled (e.g. voice); to hold (a castle, fortress, etc.)
material; material properties; quality of material; quality of wood; quality of lumber
for better or worse; for good and bad; regardless of merit; both good and bad
possibility; potential; expandability
contradiction; inconsistency
custom; convention; common practice; (arch.) becoming accustomed (to)
to be indelibly stained or ingrained; to be dyed in deeply
to engage in; to participate in; to take part in; to be involved in
to begin to catch (attention, etc.); to begin to collect
ferocious; fierce; truculent; savage
just right (time, size, length, etc.)
to throw; to toss; to hit; to strike; to fire into (e.g. a crowd); to launch (e.g. missiles)
whispering; whisper; secret talk; murmur
chewing; mastication; digestion (e.g. of words); assimilation; comprehension
flower; blossom; cherry blossom; beauty; blooming (esp. of cherry blossoms); ikebana; hanafuda
excess or deficiency; too much or too little
dimension; perspective; point of reference; level (of something)
long ago; a long time ago; already
reckless remark; rash remark; thoughtless words; falsehood
speech and conduct; words and deeds
that is to say; so that means
precondition; prerequisite
not the time for; not the place for; far from; anything but; ... is out of the question; ... isn't the word for it
eternal; everlasting; unchangeable; invariant
uncivilized; uncivilised; undeveloped (land); unexplored (territory, field, etc.); unbloomed (flower)
at present; currently; so far; for now; for the time being
fairy tale; fairy story; nursery tale
story; tale; narrative; account; fable; legend
large quantity; massive (quantity); mass (e.g. mass production, mass transit, mass destruction)