to return (something); to restore; to turn over; to turn upside down; to pay back; to retaliate; to respond (with)
one's own problem; one's own issues
sunrise; half-melon shaped bun
official history; authorized history
to prowl after; to keep watch on
partial; incomplete; imperfect
sink or swim; all or nothing; hit or miss; make or break
(apportioning) in small amounts
to wear glasses; to put on glasses
old girl; former female student; alumna; office girl
to have stiff shoulders; to feel ill at ease; to feel uncomfortable; serious; sober
to ring an alarm bell; to sound a warning; to blow a whistle; to warn
to carry out one's mission
ignition; detonation; triggering; explosion
variables; uncertain elements; uncertainties; imponderables
index; indices; indicator
as you see; as you can see
autonomy (philosophy); self-control
alteration; falsification; faking
emergency staircase; emergency stairs
pedestrian crossing; crosswalk
aperture; bore; calibre; caliber
ironically enough; as irony would have it; in a nice little twist
tolerance level; permissible range; acceptable limits
firm promise; definite promise