to fail to hear something; to miss; to act as if one didn't hear something; to let a remark slide
laboratory; seminar room; professor's office
to creep in; to steal in; to sneak in
thinking back now; looking back
to accomplish; to fulfill; to carry out
way of saying (something); way of putting it; wording; phrasing; language; expression
tendency; trend; inclination
not quite (right); not very good; somewhat (lacking)
apt to (do); liable to; predominantly; mostly; ... reaps the rewards; ... takes the prize
once in a while; occasionally; at long intervals
incoherent; wandering; vague; rambling; whimsical
plan; meter; measuring device; (in) total; total (of)
obstacle; hindrance; impediment; difficulty
operation (of a ship or aircraft route); service; navigation; flight
as planned; according to plan
beforehand; in advance; ahead of time; previously
peacetime; time of peace; ordinary times; normal times
horizon (related to land)
artificial object; man-made object; artifact; artefact
railway track; railway line; railroad; railway; track; line
very likely; very probable
concentration (on a task); focusing one's attention; concentration (of population, buildings, power, etc.); centralization; within a collection of works
bright white (esp. for snow and ice); brilliant white
easy; likely to ...; have a tendency to ...; easy to ...
overall; general; as a whole
to strain one's eyes; to look closely; to stare at
many; numerous; various; large number of
reflection; reconsideration; introspection; regret; repentance; remorse
to drive on; to urge forward (e.g. cattle); to rouse (game from its cover); to press a tenant to leave; to evict
to give someone space; to give someone breathing room; to cut someone some slack; to provide leeway; to provide an opportunity
something to think about; one's thoughts; concern; thinking about something; being absorbed in one's thoughts
won't; hasn't; isn't; won't you
to rest; to suspend; to give relief
making practical; making useful; implementing
inattention; absent-mindedness
receiving (a message, letter, email, etc.); reception (radio, TV, etc.)
antenna; thing or method used to collect information or opinions
with a loud smack; whack; slap; crack; snap
(and) then; and; thereupon; in that case; then; so
completely (quitting, etc.); entirely; thoroughly; cleanly (cutting, snapping off, etc.); in a single blow
extreme cold; intense cold; coldest season; midwinter