deuterium; heavy hydrogen
laboratory; seminar room; professor's office
unusual; serious; incomparable
flight dynamics; aerodynamics; aeromechanics
free; unrestricted; (with) complete mastery; completely in control
internal combustion engine
propulsive power; driving force
thrust; driving force; propulsion
posterity; future generations
meddling (in); butting in; interference; poking one's nose into
easygoing; optimistic; conceited
any beech tree of genus Castanopsis
one's origin (e.g. city, country, parentage, school)
having an ancient and honorable origin; of good lineage; of noble birth
a long time ago; in those days
adventure travel; adventurous trip
to share (someone's) good luck; to follow (someone's) example; to enjoy the same benefits (of someone or something); to be named after
off the coast; offshore; out at sea
being settled; coming to a conclusion
entry (in an event, competition, etc.); applying for entry; registering to participate; entry (on a blog, in a database, etc.); post
order; turn; sorting; obedient; docile; submissive
zeal; enthusiasm; ardor; ardour
something extra; something on top; and then some; icing on the cake
most (numerous); largest (number of)
papier-mâché; something that looks good superficially; sham
mixed bag; mixture of good and bad; jumble of wheat and chaff; (lit.) mixture of precious gems and common rocks
aviator; flying ace; birdman
painting (houses, fences, etc.)
main spindle; main shaft; linchpin; pivot; principal axis; main axis
senility; dotage; decrepitude
to do; to have the nerve to (do)
dotage; feeble-minded old man; senile old fool; dotard