serious; honest; sober; grave; earnest; steady
to knit; to plait; to braid; to compile (anthology, dictionary, etc.); to edit
National Aeronautics and Space Administration; NASA
National Aeronautics and Space Administration; NASA
development; exploitation
knowing; (an) acquaintance
(a) little; somewhat; somehow
of course; certainly; naturally
admiration; wonder; astonishment
to make merry; to frolic; to be in high spirits
subtle; delicate; difficult; complex; doubtful; questionable
difference in temperature; difference in degrees of enthusiasm, interest, commitment, etc.
there's no (other) way; cannot be helped; unavoidable; it's no use (doing); pointless; hopeless (person)
mechanism; mechanics; machines; mechanic
grandfather (may be used after name as honorific); male senior-citizen (may be used after name as honorific)
sad; miserable; unhappy; sad; lamentable; deplorable
large; big; older; senior; final; ultimate
to raise; to elevate; to do up (one's hair); to fly (a kite, etc.); to launch (fireworks, etc.); to land (a boat); to deep-fry
slowness; inertness; inability; lack of talent; dullness
to; for; from the standpoint of; as far as ... is concerned
treatment; service; handling (of a machine, tool, etc.); operation; treating as; treating like
to become stiff (of muscles); to get absorbed in; to develop a passion for; to be elaborate; to be intricate
place; spot; field; discipline; occasion; situation; scene (of a play, movie, etc.)
poor; pitiable; pathetic; pitiful
pity; sorrow; pitiable; pitiful; alack; alas
all-America; pan-American; all of America
all one's power (strength, energy, efforts); one's utmost
to make a display of; to show off; to flaunt
character (of a person); personality; disposition; characteristics; nature (of a thing, event, etc.)
close; intimate; on good terms
expressing one's mind; speaking out
as expected; sure enough; after all (is said and done); in the end; too; also
how much; something over; and something; however (much); no matter how
making a round trip; going and returning; round-trip ticket; return ticket; correspondence; exchanging (letters)
somehow; for some reason; without knowing why
that's the way it is; such is life