to respond; to answer; to accept (an invitation, offer, etc.); to comply with (a request, etc.); to suit; to match
keenly; deeply; calmly; quietly; fixedly (gazing, staring); intently
charge; cost; generation; age; era; a representative of; on behalf of
tail (of an animal); tail end; tip
that way; that direction; that (one); that person; there; over there
itself; one's own body; oneself; originally; naturally
laboratory; seminar room; professor's office
very interesting; of absorbing interest; having a keen interest (in); being immensely curious (about)
being somewhat excited (agitated)
attending (school, college, etc.); being enrolled; being a student
combat; battle; action; active service; actual fighting
town area; urban area; metropolitan area; built-up area
teacher; instructor; teaching staff; faculty member
research; study; investigation
pupil; student; schoolchild
shelter; cover; screen; shield; obstruction; defilade
even; flat; level; calm; peaceful; uneventful
toughened glass; tempered glass
to partition; to divide; to direct; to manage; to settle accounts; to assume a crouching posture (at the start of a bout)
to imitate; to copy; to mock; to trace; to forge
to hit each other; to exchange blows; to fight
to fly about; to flutter about; to flit about; to fly past each other
strong-willed; strong of heart
regarding as important; attaching importance to; taking a serious view of; putting emphasis on
turning things around with a home run; turning the tables with a single successful attack (move)
measure; step; countermeasure; counterplan; countermove; strategy
arranged; taken care of; settled; completed; finished
self-proclaimed; self-professed; professing oneself to be; calling oneself; first person
pigtails; bunches; two ponytails; angel wings
hair style; coiffure; hairdo
family vacation; family trip
to drop by; to stop by; to drop in; to approach; to draw near; to come close (to)
travel; trip; journey; excursion; tour
sham battle; mock battle; dry run; military exercise; war game
exchange (e.g. cultural); interchange; interaction; alternating current; AC
speaking of ...; when it comes to ...; as for ...; if one were to say ...
sorcery; black magic; netherworld; world outside the six realms where evil spirits roam
festival; feast; harassment by an Internet pitchfork mob; online shaming; galore (as in "goals galore"); frenzy
collaborative research; joint research
joint exercise; joint training
to prosper; to flourish; to thrive; to become popular; to become widespread
nonexistent; nil; none; nothing (at all); bugger-all