concrete; definite; specific; material; substantial
doesn't amount to doing (something); not significant enough to require (something); unnecessary
understanding; comprehension; appreciation; sympathy
to differ; to vary; to disagree
accident; incident; trouble; circumstances; reasons
(college) president; secretary-general
many; numerous; various; large number of
research results; research record; research achievement
being well versed (in); being well acquainted (with); being familiar (with); (a boy's) first ejaculation; spermarche; semenarche
structure; construction; makeup; framework; organization; pattern
to request; to beg; to call; to order; to entrust to; to rely on
to visit; to call on; to arrive (season, time, situation, etc.); to come; (arch.) to make a sound; (arch.) to send a letter
when; at what time; how soon; normal times; ordinary days
to come and see (someone, something); to visit
to leak out; to escape; to find expression; to give vent; to leak out; to be divulged
to be heard; to be audible; to be said to be; to be reputed
I'm sorry; (it's) inexcusable; I feel regretful; thank you very much (for help, etc.)
to come together; to merge; to fit; to match; to be profitable; to be equitable
guilty (feeling, conscience, look, etc.); (feeling) uneasy
there is no need to ...; never happens; there is never a time when
unintentionally; unconsciously; by mistake; heedlessly; against one's better judgement (judgment)
to apologize; to apologise
safe; secure; certainly; surely; no thanks; I'm good
(approximate) time; around; suitable time (or condition); time of year; season
degree (angle, temperature, scale, etc.); counter for occurrences; strength (of glasses); glasses prescription; alcohol content (percentage); alcohol by volume; extent
yes?; no?; isn't it?; is it?
low (level, value, price, etc.)
amount necessary to fill a container (e.g. cupful, spoonful, etc.); drink (usu. alcoholic); full; one squid, octopus, crab, etc.; one boat; fully; to capacity
negative; passive; half-hearted; unmotivated
what time; (lit.) which hour
tip of nose; before one's eyes; under one's nose; tip (of something)
index finger; forefinger; second toe
mincing; chopping finely; short and repeated (movements) (e.g. trembling, stepping quickly); gradual; bit by bit
to hit; to expose; to apply (e.g. patch); to put on; to allot; to call on someone (e.g. in class); to guess (an answer)