preservation; conservation; storage; save (to storage)
output (electrical, signal, etc.)
high efficiency; high performance
sound wave; acoustic wave
embarkation; boarding (a ship or aircraft)
biggest; greatest; largest; maximum
continuation; succession; series; continuous
prescribed; designated; appointed; fixed
radio wave; reception; signal; saying strange things
not only ... (but also); not merely; as well as; furthermore; besides; moreover
all-purpose; utility; universal; all-powerful; almighty; omnipotent
vehicle; conveyance; (means of) transport; ride (at a fair, amusement park, etc.); attraction
space flight; spaceflight
appendix; supplement; annex; extra (of a newspaper or magazine)
two people riding together (on a bike, etc.); riding double
(in) the air; midair; sky
long time; several hours; long spell
submarine voyage; underwater navigation
to affect adversely; to have a negative influence (on)
sky; the air; weather; far-off place; distant place; state of mind; feeling
secret; private; surreptitious
to boast of; to be proud of; to take pride in
atomic energy; nuclear power
submarine aircraft carrier
speaking of ...; when it comes to ...; as for ...; if one were to say ...
prohibition; inhibition; ban
atomic reactor; nuclear reactor
slide (for projection); transparency; (microscope) slide; to slide; to slip; to shift (e.g. a group of items in a schedule)
to appear; to come in sight; to become visible; to be expressed (e.g. emotions); to become apparent (e.g. trends, effects)
to take down; to bring down; to drop off (a passenger); to let off; to withdraw (money); to use for the first time; to wear for the first time
OK; okay; fine (without); not needed; unnecessary
figure of a person; figures of people; shadow of a person
skillful; skilful; delicious; tasty; good (deal, idea, etc.); profitable
to slip out; to sneak away; to break into the lead; to get ahead; to begin to fall out (e.g. hair); to break out (of a loop)
gaining total control (of people or counties); suppression; oppression; control; mastery; ascendancy
to disappear into; to be lost in; to do something under the cover of (confusion, etc.); to be almost indistinguishable; to be confusingly similar; to be diverted from (negative emotions, etc.)
boarding a warship; serving on a warship; warship in which one serves