main cause; primary factor
to finish; to stop; to close (a business, etc.); to close down; to put away; to put back
shock (psychological); crisis (esp. financial); event that rattles the markets; shock (physical, mechanical); shock (e.g. due to lack of blood flow); trauma
considerably; not a little; in no small numbers
dropping out of school; withdrawing from school; expulsion from school; dismissal; leaving school (university, etc.) after completing a course
filling (up) a hole; filling in (for a gap, vacancy, etc.); stopgap; making up (for a loss, damage, etc.); covering (a deficit); cloze deletion (test format)
(necessary) personnel; required person
being enrolled (at a school); being registered; being a member (of a team, organization, etc.)
lesson; class work; teaching; instruction
participation; joining; entry; adherence
materials; data; document
use; application; employment; utilization; utilisation
permission; approval; authorization; to permit; to authorize
important; momentous; essential; principal; major
individual lesson; tutorial; one-on-one instruction
to receive; to get; to catch (e.g. a ball); to be struck by (wind, waves, sunlight, etc.); to sustain (damage); to incur (a loss); to undergo (e.g. surgery)
to study (in depth); to learn; to take lessons in
one's own strength; one's own efforts; self-salvation
to achieve results; to be successful (in a venture, etc.)
to be able (in a position) to do; to be up to the task; to be ready; to be completed; to be made; to be built; to be good at
infantry (in the Japan Ground Self-Defense Force); general education curriculum
graduation; completion (of a course); moving on (from); outgrowing (something); leaving (a group, company, etc.)
qualifications; requirements; capabilities
entering a higher-level school, esp. going on to university
to teach; to instruct; to tell; to inform; to preach
insufficiency; deficiency; shortage; dissatisfaction; discontent; complaint
present condition; existing state; status quo; current state
life; living; I; me; student
condition; assumption; intention; intent; premise (in logic)
as (for); for; in the capacity of
prohibition; inhibition; ban
middle; halfway; half (of); one half; half (e.g. done, jokingly); partly
open; public; official; overt
(those) who are; (that) which is; in the capacity of
disparaging words; derogatory term; insult; epithet
inside; interior; among; within; middle; center; during
sticking (in one place, position, etc.); settling; becoming established (of a custom, system, etc.); taking hold; fixation (photography); fixing
have no choice; there is nothing but; no more than
recognition; awareness; perception; understanding; knowledge; cognition
expressly; especially; taking the trouble (to do); intentionally; deliberately
bad-mouthing someone so as to be deliberately overheard; intentionally letting someone hear insults or sarcasm regarding them