difficult to ...; hard to ...
for a short while; for a while; for some time; for the time being
(a) little; (a) few; slight; only; just; merely
hopeless; futile; no use; beyond help; cannot be done
to ring; to sound; to be popular; to be esteemed; to state; to insist
potentiality; likelihood; possibility; availability
supposing; even if; granting that; temporarily; provisionally; for the time being
spring break; spring vacation
possible; likely; probable
clue; lead; key; handhold; hold
change; variation; variety; diversity; inflection; declension
dot; spot; mark (in an exam, etc.); grade; point (in a game); score; point (in geometry)
detection; sense (e.g. sensor)
habit (often a bad habit, i.e. vice); tendency; peculiarity; idiosyncrasy; crease; wrinkle
to see through; to see into (someone's heart, mind, etc.); to perceive; to find out; to detect
battle formation; camp; encampment; group; gang; war
being on duty; being on watch; person on duty
unsteadily (e.g. on one's feet); shakily; wavering (in one's mind); unsteadily; aimlessly; unconsciously
perhaps; probably; generous; many; much
long (time that has passed); old (story)
the body is honest; your body reveals what you really think (or want)
one clap; one beat; one mora (taken as a unit of time)
(sound effect for) collapsing; losing strength; slumping; losing balance
to be saved; to be rescued; to escape harm; to be spared damage; to be helped; to be saved trouble
sleepy; drowsy; somnolent
mutually; with each other; reciprocally; together; both
to open one's mouth (to talk); to (start to) tell
clique; group; (political) faction; wing; school; sect
pure; innocent; pure; unmixed; long kimono made from the same plain-coloured cloth
to smell; to smell of; to have a smell
love romance; love story; romance; romance story; romantic fiction
theme; topic; subject matter; motif; project; slogan
center; centre; middle; -centered; -centred; -focused