electromagnetic compatibility; EMC
difficult to ...; hard to ...
defense; defence; safeguard; protection
measure; step; countermeasure; counterplan; countermove; strategy
both; both sides; both parties
sales; selling; marketing
countermeasure; counter-measure
steady progress; rapid advance
being able to hear something (clearly); clearness of a sound; reputation; renown; impression (that something gives off); respectability
to become clear; to be made public
steady; honest; sober; straightforward
the end; the extremity; the limit; the limits; the result
marathon; long-distance race
defective item; defective product; defective merchandise
strict; close; precise; scrupulous
standard; basis; criterion; norm; reference; datum
judging from; on the basis of; from the point of view of
recommendation; advice; suggestion; encouragement
difficult to ...; hard to ...
acknowledgement; acknowledgment; recognition; cognition
illness (usu. excluding minor ailments, e.g. common cold); disease; bad habit; bad behaviour; crazy; insane
burden; load; responsibility; bearing (a cost, responsibility, etc.); shouldering
to not believe one's ears
to take a long hard look at; to look (someone) full in the face
in-house manufactured goods
calm; composed; cool; quiet
spontaneity; spontaneous passive
respiratory tract; air duct
pressure; stress; pressure (e.g. political); coercion; arm-twisting
circulation; rotation; cycle; loop
to disturb; to prevent; to obstruct; to hinder
fall; decline; lowering; deterioration; degradation
to save up; to stockpile; to stash away; to hoard; to amass; to salt away