operating (e.g. of trains, cars); running; working
test (of ability, knowledge, etc.); exam; test (of performance, quality, etc.); trial; rehearsal
so to speak; so to call it; as it were; in a sense
internal medicine; department of internal medicine
to spend time (on doing something)
training (animals); breaking (animals)
prevailing view; common opinion; general consideration
(something having its) merits and demerits; advantages and disadvantages; good points and shortcomings
versatility; multiplicity of use
talented; gifted; prodigious; virtuoso; masterful
throughout; over a period of ...; over a span of ...
accumulation; accumulate; store
one field; a division; a branch (e.g. of study, etc.)
to make (the best) use of; to put to good use; to leverage (skills, attributes, experience, etc.); to restore (a deleted passage; in proofreading)
specialization; specialisation
to meet the requirements; to satisfy the conditions
swift attack; quick attack; fast break; right away; without delay; immediately
sale; selling; selling point; gimmick; seller; vendor
hidden ball trick; ace up one's sleeve; secret weapon
ill-natured; mean; mischievous; nasty; unkind; teasing
elder brother; big brother; one's senior; one's elder; old ingredients; stale ingredients
outrageous lie; outright lie
lie; falsehood; fiction; fabrication
enshrinement; installation (of an image)
guess; conjecture; supposition; inference
by your leave; with your permission
childhood friend; friend from infancy; old playmate
one's way (ahead); one's path
without permission; without notice
removal (of a building, equipment, etc.); dismantling (e.g. a tent); striking (a stage set, camp, etc.); withdrawal (of troops); pulling out; evacuation
to a greater or lesser extent (degree); more or less
smooth words make smooth ways; it's not what you say; it's how you say it
had better ...; had better not ...
voluntary; optional; free; elective
unsociable; unfriendly; blunt; surly; curt; cold
qualitative difference; disparity; gap
to fill in (field, entry, etc.); to fill out (form); to post a message (e.g. on a bulletin-board); to store; to write (data); to flash
hostility; antagonism; opposition
deletion; elimination; erasure; striking out
bylaws; by-laws; detailed regulations
distinction; differentiation; discrimination; difference