to fail to catch; to let slip; to miss
studies; schoolwork; classwork
laws of nature; physical laws; physics
throw; throwing; resigning (a game of shogi, go, etc.); giving up; selling at a loss; sell-off
acquaintance; relation; affinity; reason
criterion; standard; yardstick; rough estimate; approximation
taking leave (of a visited place); leaving; going home; leaving one's employment; quitting one's job; being dismissed
first year of high school; first-year high school student
(on) one's own; (by) oneself
to pretend to be tough; to put on a brave front; to whistle in the dark; to bluff
to attract interest; to capture attention
trouble; troubles; worry; distress; sorrows; anguish
insight; discernment; perception; perspicacity; acumen
to start (something); to start up; to launch (a business); to boot (a computer); to launch (a program)
to be rich (in); to abound (in); to be abundant (in); to be rich; to be wealthy
believer; adherent; devotee; fanboy; fanatic; superfan
five-digit number; "ten thousands" column
falling out (with); quarrel; discord; estrangement; being on bad terms
hegemony; leadership; initiative
concerning ...; over ...; about ...; centering on ...
both groups; both factions
extreme (measure, idea, etc.); radical; violent (language); strenuous (exercise, work, etc.); excessive; (physically) demanding
invitation; solicitation; canvassing; canvasing; inducement; persuasion
demonstration; show of force
area; region; district; locality
trouble; difficulty; failure (of an engine, machine, computer, etc.); breakdown; (medical) condition; disorder
vicious circle; vicious cycle
indiscriminate terror; indiscriminate terrorism
to get involved (with); to begin (with); to have a hand (in)
nationwide; countrywide; national; throughout the country
to claim victims; to cause casualties
to live through hell; to go to hell and back; to suffer dire straits
decorations; offerings; mere window dressing
to take responsibility (for a fallout); to accept the blame; to take the blame
besides; moreover; in addition; to make matters worse
to launch oneself upon; to make one's debut
last days; the end; one's fate
to follow (a road, path, etc.); to trace; to follow (a clue, scent, tracks, plot, etc.); to trace (a route, history, family tree, etc.); to head towards (of a situation); to go in the direction of