postdoc; postdoctoral fellow; postdoctoral researcher
prototype model; experimental machine
without permission; without notice
to handle (men); to master (a tool); to manage; to acquire a command of (a language)
form (as opposed to substance); formality; method; system; format; mode
puzzle ring; wire puzzle; exercise where students link crossed hands in a circle and try working together and without letting go
flat board; slab; slat; monotonous; dull; flat
ball; sphere; bead (of sweat, dew, etc.); drop; ball (in sports); pile (of noodles, etc.); bullet
to add (one thing to another); to add (a few more words, an explanation, etc.)
stealthily; secretly; in secret
first thing in the morning
parts; accessories; components
Ding an sich; thing in itself
to bury; to embed; to implant
to assemble; to set up; to construct
on one occasion; once; at one point; at one time
nonchalant; unconcerned; in a casual manner
Civil Aeronautics Law; Aviation Law
assumption; supposition; hypothesis
registration; accession; register; entry; record
by-laws; detailed regulations
laws and ordinances; acts (of parliament, congress, etc.)
present; current; in operation
pioneer; settler; colonist
anywhere; for all time; through thick and thin; come hell or high water; persistently; stubbornly
skeletal frame; skeleton; framework; frame; outline
folding bicycle; folding bike
to be much obliged (to someone); to receive favor (favour); to be indebted; to be grateful
particularly; only; in the case of
present stage; current phase; current rank; present grade
machine parts; machinery; equipment
new rice; first rice crop of the year; novice; beginner; newcomer
being in one's room (office, etc.)